CVE-2025-14523

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-14523", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2025-12-11T07:03:53.445Z", "datePublished": "2025-12-11T12:30:59.266Z", "dateUpdated": "2026-11-04T21:24:04.070Z"}, "containers": {"cna": {"title": "Libsoup: libsoup: duplicate host header handling causes host-parsing discrepancy (first- vs last-value wins)", "metrics": [{"other": {"content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw in libsoup\u2019s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the backend interprets it as destined for another host. This discrepancy enables request-smuggling style attacks, cache poisoning, or bypassing host-based access controls when an attacker supplies duplicate Host headers."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup3", "defaultStatus": "affected", "versions": [{"version": "0:3.6.5-3.el10_1.8", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:enterprise_linux:10.1"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup3", "defaultStatus": "affected", "versions": [{"version": "0:3.6.5-3.el10_0.11", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.62.2-10.el7_9", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:rhel_els:7"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.62.3-11.el8_10", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream", "cpe:/o:redhat:enterprise_linux:8::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "spice-client-win", "defaultStatus": "affected", "versions": [{"version": "0:8.10-6.el8_10.1", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.62.3-11.el8_10", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream", "cpe:/o:redhat:enterprise_linux:8::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.62.3-1.el8_2.7", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.2::appstream", "cpe:/o:redhat:rhel_aus:8.2::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "spice-client-win", "defaultStatus": "affected", "versions": [{"version": "0:8.10-6.el8_2.1", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.2::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.62.3-2.el8_4.7", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream", "cpe:/o:redhat:rhel_aus:8.4::baseos", "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "spice-client-win", "defaultStatus": "affected", "versions": [{"version": "0:8.10-6.el8_4.1", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.62.3-2.el8_4.7", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream", "cpe:/o:redhat:rhel_aus:8.4::baseos", "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "spice-client-win", "defaultStatus": "affected", "versions": [{"version": "0:8.10-6.el8_4.1", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.62.3-2.el8_6.7", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/o:redhat:rhel_aus:8.6::baseos", "cpe:/o:redhat:rhel_e4s:8.6::baseos", "cpe:/o:redhat:rhel_tus:8.6::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "spice-client-win", "defaultStatus": "affected", "versions": [{"version": "0:8.10-6.el8_6.1", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.62.3-2.el8_6.7", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/o:redhat:rhel_aus:8.6::baseos", "cpe:/o:redhat:rhel_e4s:8.6::baseos", "cpe:/o:redhat:rhel_tus:8.6::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "spice-client-win", "defaultStatus": "affected", "versions": [{"version": "0:8.10-6.el8_6.1", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.62.3-2.el8_6.7", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/o:redhat:rhel_aus:8.6::baseos", "cpe:/o:redhat:rhel_e4s:8.6::baseos", "cpe:/o:redhat:rhel_tus:8.6::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "spice-client-win", "defaultStatus": "affected", "versions": [{"version": "0:8.10-6.el8_6.1", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.62.3-3.el8_8.7", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream", "cpe:/o:redhat:rhel_e4s:8.8::baseos", "cpe:/o:redhat:rhel_tus:8.8::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "spice-client-win", "defaultStatus": "affected", "versions": [{"version": "0:8.10-6.el8_8.1", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.62.3-3.el8_8.7", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream", "cpe:/o:redhat:rhel_e4s:8.8::baseos", "cpe:/o:redhat:rhel_tus:8.8::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "spice-client-win", "defaultStatus": "affected", "versions": [{"version": "0:8.10-6.el8_8.1", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.72.0-12.el9_7.3", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.72.0-8.el9_0.8", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_e4s:9.0::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.72.0-8.el9_2.8", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_e4s:9.2::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.4 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.72.0-8.el9_4.8", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_eus:9.4::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "affected", "versions": [{"version": "0:2.72.0-10.el9_6.5", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_eus:9.6::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "libsoup", "defaultStatus": "unknown", "cpes": ["cpe:/o:redhat:rhel_els:6"]}], "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:0421", "name": "RHSA-2026:0421", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0422", "name": "RHSA-2026:0422", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0423", "name": "RHSA-2026:0423", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0836", "name": "RHSA-2026:0836", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0867", "name": "RHSA-2026:0867", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0868", "name": "RHSA-2026:0868", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0905", "name": "RHSA-2026:0905", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0906", "name": "RHSA-2026:0906", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0907", "name": "RHSA-2026:0907", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0908", "name": "RHSA-2026:0908", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0909", "name": "RHSA-2026:0909", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0911", "name": "RHSA-2026:0911", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0925", "name": "RHSA-2026:0925", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:1509", "name": "RHSA-2026:1509", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:1569", "name": "RHSA-2026:1569", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:1570", "name": "RHSA-2026:1570", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:1571", "name": "RHSA-2026:1571", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:1572", "name": "RHSA-2026:1572", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2025-14523", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2421349", "name": "RHBZ#2421349", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://gitlab.gnome.org/GNOME/libsoup/-/issues/472"}], "datePublic": "2025-12-11T00:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-444", "description": "Inconsistent Interpretation of HTTP Requests", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-444: Inconsistent Interpretation of HTTP Requests", "workarounds": [{"lang": "en", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}], "timeline": [{"lang": "en", "time": "2025-12-11T06:58:04.938Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2025-12-11T00:00:00.000Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "Red Hat would like to thank Ky0toFu and Sovereign Tech Resilience program for reporting this issue."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-04T21:24:04.070Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-12-11T14:49:20.324130Z", "id": "CVE-2025-14523", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-05T16:29:53.174Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-14523", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-12-11T14:49:20.324130Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-12-11T14:54:32.589Z"}}], "cna": {"title": "Libsoup: libsoup: duplicate host header handling causes host-parsing discrepancy (first- vs last-value wins)", "credits": [{"lang": "en", "value": "Red Hat would like to thank Ky0toFu and Sovereign Tech Resilience program for reporting this issue."}], "metrics": [{"other": {"type": "Red Hat severity rating", "content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}], "affected": [{"cpes": ["cpe:/o:redhat:enterprise_linux:10.1"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "versions": [{"status": "unaffected", "version": "0:3.6.5-3.el10_1.8", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:3.6.5-3.el10_0.11", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_els:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support", "versions": [{"status": "unaffected", "version": "0:2.62.2-10.el7_9", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream", "cpe:/o:redhat:enterprise_linux:8::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "0:2.62.3-11.el8_10", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "0:8.10-6.el8_10.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "spice-client-win", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream", "cpe:/o:redhat:enterprise_linux:8::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "0:2.62.3-11.el8_10", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.2::appstream", "cpe:/o:redhat:rhel_aus:8.2::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "versions": [{"status": "unaffected", "version": "0:2.62.3-1.el8_2.7", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.2::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "versions": [{"status": "unaffected", "version": "0:8.10-6.el8_2.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "spice-client-win", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream", "cpe:/o:redhat:rhel_aus:8.4::baseos", "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "versions": [{"status": "unaffected", "version": "0:2.62.3-2.el8_4.7", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "versions": [{"status": "unaffected", "version": "0:8.10-6.el8_4.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "spice-client-win", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream", "cpe:/o:redhat:rhel_aus:8.4::baseos", "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On", "versions": [{"status": "unaffected", "version": "0:2.62.3-2.el8_4.7", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On", "versions": [{"status": "unaffected", "version": "0:8.10-6.el8_4.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "spice-client-win", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/o:redhat:rhel_aus:8.6::baseos", "cpe:/o:redhat:rhel_e4s:8.6::baseos", "cpe:/o:redhat:rhel_tus:8.6::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "versions": [{"status": "unaffected", "version": "0:2.62.3-2.el8_6.7", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "versions": [{"status": "unaffected", "version": "0:8.10-6.el8_6.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "spice-client-win", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/o:redhat:rhel_aus:8.6::baseos", "cpe:/o:redhat:rhel_e4s:8.6::baseos", "cpe:/o:redhat:rhel_tus:8.6::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "versions": [{"status": "unaffected", "version": "0:2.62.3-2.el8_6.7", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "versions": [{"status": "unaffected", "version": "0:8.10-6.el8_6.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "spice-client-win", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/o:redhat:rhel_aus:8.6::baseos", "cpe:/o:redhat:rhel_e4s:8.6::baseos", "cpe:/o:redhat:rhel_tus:8.6::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:2.62.3-2.el8_6.7", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:8.10-6.el8_6.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "spice-client-win", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream", "cpe:/o:redhat:rhel_e4s:8.8::baseos", "cpe:/o:redhat:rhel_tus:8.8::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "versions": [{"status": "unaffected", "version": "0:2.62.3-3.el8_8.7", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "versions": [{"status": "unaffected", "version": "0:8.10-6.el8_8.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "spice-client-win", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream", "cpe:/o:redhat:rhel_e4s:8.8::baseos", "cpe:/o:redhat:rhel_tus:8.8::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:2.62.3-3.el8_8.7", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:8.10-6.el8_8.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "spice-client-win", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:2.72.0-12.el9_7.3", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.0::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:2.72.0-8.el9_0.8", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.2::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:2.72.0-8.el9_2.8", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.4::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.4 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:2.72.0-8.el9_4.8", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.6::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:2.72.0-10.el9_6.5", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_els:6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unknown"}], "timeline": [{"lang": "en", "time": "2025-12-11T06:58:04.938Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2025-12-11T00:00:00.000Z", "value": "Made public."}], "datePublic": "2025-12-11T00:00:00.000Z", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:0421", "name": "RHSA-2026:0421", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0422", "name": "RHSA-2026:0422", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0423", "name": "RHSA-2026:0423", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0836", "name": "RHSA-2026:0836", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0867", "name": "RHSA-2026:0867", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0868", "name": "RHSA-2026:0868", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0905", "name": "RHSA-2026:0905", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0906", "name": "RHSA-2026:0906", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0907", "name": "RHSA-2026:0907", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0908", "name": "RHSA-2026:0908", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0909", "name": "RHSA-2026:0909", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0911", "name": "RHSA-2026:0911", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:0925", "name": "RHSA-2026:0925", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:1509", "name": "RHSA-2026:1509", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:1569", "name": "RHSA-2026:1569", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:1570", "name": "RHSA-2026:1570", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:1571", "name": "RHSA-2026:1571", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:1572", "name": "RHSA-2026:1572", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2025-14523", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2421349", "name": "RHBZ#2421349", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://gitlab.gnome.org/GNOME/libsoup/-/issues/472"}], "workarounds": [{"lang": "en", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "A flaw in libsoup\u2019s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the backend interprets it as destined for another host. This discrepancy enables request-smuggling style attacks, cache poisoning, or bypassing host-based access controls when an attacker supplies duplicate Host headers."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-444", "description": "Inconsistent Interpretation of HTTP Requests"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-04T21:24:04.070Z"}, "x_redhatCweChain": "CWE-444: Inconsistent Interpretation of HTTP Requests"}}, "cveMetadata": {"cveId": "CVE-2025-14523", "state": "PUBLISHED", "dateUpdated": "2026-11-04T21:24:04.070Z", "dateReserved": "2025-12-11T07:03:53.445Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2025-12-11T12:30:59.266Z", "assignerShortName": "redhat"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:10.1"], "defaultStatus": "affected", "packageName": "libsoup3", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:3.6.5-3.el10_1.8", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"], "defaultStatus": "affected", "packageName": "libsoup3", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:3.6.5-3.el10_0.11", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:rhel_els:7"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.62.2-10.el7_9", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream", "cpe:/o:redhat:enterprise_linux:8::baseos"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.62.3-11.el8_10", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream"], "defaultStatus": "affected", "packageName": "spice-client-win", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:8.10-6.el8_10.1", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream", "cpe:/o:redhat:enterprise_linux:8::baseos"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.62.3-11.el8_10", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.2::appstream", "cpe:/o:redhat:rhel_aus:8.2::baseos"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.62.3-1.el8_2.7", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.2::appstream"], "defaultStatus": "affected", "packageName": "spice-client-win", "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:8.10-6.el8_2.1", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream", "cpe:/o:redhat:rhel_aus:8.4::baseos", "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.62.3-2.el8_4.7", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"], "defaultStatus": "affected", "packageName": "spice-client-win", "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:8.10-6.el8_4.1", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream", "cpe:/o:redhat:rhel_aus:8.4::baseos", "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.62.3-2.el8_4.7", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"], "defaultStatus": "affected", "packageName": "spice-client-win", "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:8.10-6.el8_4.1", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/o:redhat:rhel_aus:8.6::baseos", "cpe:/o:redhat:rhel_e4s:8.6::baseos", "cpe:/o:redhat:rhel_tus:8.6::baseos"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.62.3-2.el8_6.7", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream"], "defaultStatus": "affected", "packageName": "spice-client-win", "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:8.10-6.el8_6.1", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/o:redhat:rhel_aus:8.6::baseos", "cpe:/o:redhat:rhel_e4s:8.6::baseos", "cpe:/o:redhat:rhel_tus:8.6::baseos"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.62.3-2.el8_6.7", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream"], "defaultStatus": "affected", "packageName": "spice-client-win", "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:8.10-6.el8_6.1", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream", "cpe:/o:redhat:rhel_aus:8.6::baseos", "cpe:/o:redhat:rhel_e4s:8.6::baseos", "cpe:/o:redhat:rhel_tus:8.6::baseos"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.62.3-2.el8_6.7", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_e4s:8.6::appstream", "cpe:/a:redhat:rhel_tus:8.6::appstream"], "defaultStatus": "affected", "packageName": "spice-client-win", "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:8.10-6.el8_6.1", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream", "cpe:/o:redhat:rhel_e4s:8.8::baseos", "cpe:/o:redhat:rhel_tus:8.8::baseos"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.62.3-3.el8_8.7", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream"], "defaultStatus": "affected", "packageName": "spice-client-win", "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:8.10-6.el8_8.1", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream", "cpe:/o:redhat:rhel_e4s:8.8::baseos", "cpe:/o:redhat:rhel_tus:8.8::baseos"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.62.3-3.el8_8.7", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream"], "defaultStatus": "affected", "packageName": "spice-client-win", "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:8.10-6.el8_8.1", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.72.0-12.el9_7.3", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_e4s:9.0::appstream"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.72.0-8.el9_0.8", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_e4s:9.2::appstream"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.72.0-8.el9_2.8", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_eus:9.4::appstream"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 9.4 Extended Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.72.0-8.el9_4.8", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:rhel_eus:9.6::appstream"], "defaultStatus": "affected", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:2.72.0-10.el9_6.5", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:rhel_els:6"], "defaultStatus": "unknown", "packageName": "libsoup", "product": "Red Hat Enterprise Linux 6", "vendor": "Red Hat"}], "source": "secalert@redhat.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw in libsoup\u2019s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the backend interprets it as destined for another host. This discrepancy enables request-smuggling style attacks, cache poisoning, or bypassing host-based access controls when an attacker supplies duplicate Host headers."}, {"lang": "es", "value": "Un fallo en el manejo de encabezados HTTP de libsoup permite m\u00faltiples encabezados Host: en una solicitud y devuelve la \u00faltima ocurrencia para el procesamiento del lado del servidor. Los proxies frontales comunes a menudo respetan el primer encabezado Host:, por lo que esta discrepancia puede causar confusi\u00f3n de vhost donde un proxy enruta una solicitud a un backend, pero el backend la interpreta como destinada a otro host. Esta discrepancia permite ataques de contrabando de solicitudes, envenenamiento de cach\u00e9 o eludir los controles de acceso basados en host cuando un atacante suministra encabezados Host duplicados."}], "id": "CVE-2025-14523", "lastModified": "2026-11-04T22:17:28.697", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-14523", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-12-11T14:49:20.324130Z", "version": "2.0.3"}}]}, "published": "2025-12-11T13:15:58.983", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0421"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0422"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0423"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0836"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0867"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0868"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0905"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0906"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0907"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0908"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0909"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0911"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:0925"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:1509"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:1569"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:1570"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:1571"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:1572"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2025-14523"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2421349"}, {"source": "secalert@redhat.com", "url": "https://gitlab.gnome.org/GNOME/libsoup/-/issues/472"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank Ky0toFu and Sovereign Tech Resilience program for reporting this issue.", "bugzilla": {"description": "libsoup: libsoup: Duplicate Host Header Handling Causes Host-Parsing Discrepancy (First- vs Last-Value Wins)", "id": "2421349", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2421349"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.2", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N", "status": "draft"}, "cwe": "CWE-444", "details": ["A flaw in libsoup\u2019s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the backend interprets it as destined for another host. This discrepancy enables request-smuggling style attacks, cache poisoning, or bypassing host-based access controls when an attacker supplies duplicate Host headers."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2025-14523", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "libsoup3", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "libsoup", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "libsoup", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "libsoup", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "libsoup", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-14523\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-14523"], "statement": "This vulnerability is rated Important for Red Hat products that utilize libsoup in environments where applications are exposed via a front proxy. The flaw arises from a discrepancy in how libsoup processes duplicate Host: headers (last-value wins) compared to many proxies (first-value wins). This mismatch can lead to virtual-host confusion, enabling attackers to bypass host-based access controls or perform cache poisoning. Systems where libsoup applications are directly accessible without an intervening proxy are not affected by this specific issue.", "threat_severity": "Important"}

{}