CVE-2026-83589

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-83589", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-08-31T19:18:43.003Z", "datePublished": "2026-10-01T09:17:43.584Z", "dateUpdated": "2026-11-13T13:13:31.185Z"}, "containers": {"cna": {"title": "Oauth-proxy: open redirect via /\\ and /\\t bypass in post-login redirect", "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": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in oauth-proxy. The application fails to properly validate the destination redirect parameter (`rd`) during post-login redirection. A remote attacker can exploit this vulnerability by enticing a user to follow a specially crafted link, resulting in the user being redirected to an arbitrary external website after authenticating. This open redirect can be leveraged to conduct phishing attacks or credential theft."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.12", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-oauth-proxy", "defaultStatus": "affected", "versions": [{"version": "1792974337", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.12::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.13", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-oauth-proxy", "defaultStatus": "affected", "versions": [{"version": "1793822494", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.13::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.14", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-oauth-proxy", "defaultStatus": "affected", "versions": [{"version": "1791837363", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.14::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.15", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-oauth-proxy-rhel9", "defaultStatus": "affected", "versions": [{"version": "1791632336", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.15::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.16", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-oauth-proxy-rhel9", "defaultStatus": "affected", "versions": [{"version": "1792878232", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.16::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.17", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-oauth-proxy-rhel9", "defaultStatus": "affected", "versions": [{"version": "1793876755", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.17::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.18", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-oauth-proxy-rhel9", "defaultStatus": "affected", "versions": [{"version": "1790882320", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.18::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.19", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-oauth-proxy-rhel9", "defaultStatus": "affected", "versions": [{"version": "1790807096", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.19::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.20", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-oauth-proxy-rhel9", "defaultStatus": "affected", "versions": [{"version": "1790704224", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.20::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.21", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-oauth-proxy-rhel9", "defaultStatus": "affected", "versions": [{"version": "1790706478", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.21::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.22", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-oauth-proxy-rhel9", "defaultStatus": "affected", "versions": [{"version": "1790724885", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.22::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 5", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "openshift5/ose-oauth-proxy-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift:5"]}], "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:74380", "name": "RHSA-2026:74380", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:74383", "name": "RHSA-2026:74383", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:74429", "name": "RHSA-2026:74429", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:79039", "name": "RHSA-2026:79039", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:79169", "name": "RHSA-2026:79169", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:82785", "name": "RHSA-2026:82785", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:82813", "name": "RHSA-2026:82813", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:89715", "name": "RHSA-2026:89715", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:90274", "name": "RHSA-2026:90274", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:95746", "name": "RHSA-2026:95746", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:96283", "name": "RHSA-2026:96283", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2026-83589", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2518379", "name": "RHBZ#2518379", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-08-31T20:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-601", "description": "URL Redirection to Untrusted Site", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-601: URL Redirection to Untrusted Site", "workarounds": [{"lang": "en", "value": "Red Hat has not identified any known mitigations for this issue. Customers are advised to apply the available security update when released."}], "timeline": [{"lang": "en", "time": "2026-07-01T00:00:00.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-08-31T20:00:00.000Z", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-13T13:13:31.185Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-01T16:11:43.615229Z", "id": "CVE-2026-83589", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-10-01T16:11:53.072Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-83589", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-01T16:11:43.615229Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-01T16:11:49.448Z"}}], "cna": {"title": "Oauth-proxy: open redirect via /\\ and /\\t bypass in post-login redirect", "metrics": [{"other": {"type": "Red Hat severity rating", "content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}}}, {"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}], "affected": [{"cpes": ["cpe:/a:redhat:openshift:4.12::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.12", "versions": [{"status": "unaffected", "version": "1792974337", "lessThan": "*", "versionType": "rpm"}], "packageName": "openshift4/ose-oauth-proxy", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.14::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.14", "versions": [{"status": "unaffected", "version": "1791837363", "lessThan": "*", "versionType": "rpm"}], "packageName": "openshift4/ose-oauth-proxy", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.15::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.15", "versions": [{"status": "unaffected", "version": "1791632336", "lessThan": "*", "versionType": "rpm"}], "packageName": "openshift4/ose-oauth-proxy-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.16::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.16", "versions": [{"status": "unaffected", "version": "1792878232", "lessThan": "*", "versionType": "rpm"}], "packageName": "openshift4/ose-oauth-proxy-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.18::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.18", "versions": [{"status": "unaffected", "version": "1790882320", "lessThan": "*", "versionType": "rpm"}], "packageName": "openshift4/ose-oauth-proxy-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.19::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.19", "versions": [{"status": "unaffected", "version": "1790807096", "lessThan": "*", "versionType": "rpm"}], "packageName": "openshift4/ose-oauth-proxy-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.20::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.20", "versions": [{"status": "unaffected", "version": "1790704224", "lessThan": "*", "versionType": "rpm"}], "packageName": "openshift4/ose-oauth-proxy-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.21::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.21", "versions": [{"status": "unaffected", "version": "1790706478", "lessThan": "*", "versionType": "rpm"}], "packageName": "openshift4/ose-oauth-proxy-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:4.22::el9"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.22", "versions": [{"status": "unaffected", "version": "1790724885", "lessThan": "*", "versionType": "rpm"}], "packageName": "openshift4/ose-oauth-proxy-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift:5"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 5", "packageName": "openshift5/ose-oauth-proxy-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}], "timeline": [{"lang": "en", "time": "2026-07-01T00:00:00.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-08-31T20:00:00.000Z", "value": "Made public."}], "datePublic": "2026-08-31T20:00:00.000Z", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:74380", "name": "RHSA-2026:74380", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:74383", "name": "RHSA-2026:74383", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:74429", "name": "RHSA-2026:74429", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:79039", "name": "RHSA-2026:79039", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:79169", "name": "RHSA-2026:79169", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:82785", "name": "RHSA-2026:82785", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:82813", "name": "RHSA-2026:82813", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:89715", "name": "RHSA-2026:89715", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:90274", "name": "RHSA-2026:90274", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2026-83589", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2518379", "name": "RHBZ#2518379", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "workarounds": [{"lang": "en", "value": "Red Hat has not identified any known mitigations for this issue. Customers are advised to apply the available security update when released."}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "A flaw was found in oauth-proxy. The application fails to properly validate the destination redirect parameter (`rd`) during post-login redirection. A remote attacker can exploit this vulnerability by enticing a user to follow a specially crafted link, resulting in the user being redirected to an arbitrary external website after authenticating. This open redirect can be leveraged to conduct phishing attacks or credential theft."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-601", "description": "URL Redirection to Untrusted Site"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-10T11:22:56.140Z"}, "x_redhatCweChain": "CWE-601: URL Redirection to Untrusted Site"}}, "cveMetadata": {"cveId": "CVE-2026-83589", "state": "PUBLISHED", "dateUpdated": "2026-11-10T11:22:56.140Z", "dateReserved": "2026-08-31T19:18:43.003Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2026-10-01T09:17:43.584Z", "assignerShortName": "redhat"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.12::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-oauth-proxy", "product": "Red Hat OpenShift Container Platform 4.12", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1792974337", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.13::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-oauth-proxy", "product": "Red Hat OpenShift Container Platform 4.13", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1793822494", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.14::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-oauth-proxy", "product": "Red Hat OpenShift Container Platform 4.14", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1791837363", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.15::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-oauth-proxy-rhel9", "product": "Red Hat OpenShift Container Platform 4.15", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1791632336", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.16::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-oauth-proxy-rhel9", "product": "Red Hat OpenShift Container Platform 4.16", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1792878232", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.17::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-oauth-proxy-rhel9", "product": "Red Hat OpenShift Container Platform 4.17", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1793876755", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.18::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-oauth-proxy-rhel9", "product": "Red Hat OpenShift Container Platform 4.18", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1790882320", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.19::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-oauth-proxy-rhel9", "product": "Red Hat OpenShift Container Platform 4.19", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1790807096", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.20::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-oauth-proxy-rhel9", "product": "Red Hat OpenShift Container Platform 4.20", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1790704224", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.21::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-oauth-proxy-rhel9", "product": "Red Hat OpenShift Container Platform 4.21", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1790706478", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.22::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-oauth-proxy-rhel9", "product": "Red Hat OpenShift Container Platform 4.22", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1790724885", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:openshift:5"], "defaultStatus": "unaffected", "packageName": "openshift5/ose-oauth-proxy-rhel9", "product": "Red Hat OpenShift Container Platform 5", "vendor": "Red Hat"}], "source": "secalert@redhat.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in oauth-proxy. The application fails to properly validate the destination redirect parameter (`rd`) during post-login redirection. A remote attacker can exploit this vulnerability by enticing a user to follow a specially crafted link, resulting in the user being redirected to an arbitrary external website after authenticating. This open redirect can be leveraged to conduct phishing attacks or credential theft."}], "id": "CVE-2026-83589", "lastModified": "2026-11-13T13:18:27.573", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-83589", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-01T16:11:43.615229Z", "version": "2.0.3"}}]}, "published": "2026-10-01T10:17:17.217", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:74380"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:74383"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:74429"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:79039"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:79169"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:82785"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:82813"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:89715"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:90274"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:95746"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:96283"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-83589"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2518379"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-601"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"bugzilla": {"description": "oauth-proxy: Open Redirect via /\\ and /\\t Bypass in Post-Login Redirect", "id": "2518379", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2518379"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-601", "details": ["No description is available for this CVE."], "name": "CVE-2026-83589", "package_state": [{"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "impact": "important", "package_name": "openshift4/ose-oauth-proxy", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "impact": "important", "package_name": "openshift4/ose-oauth-proxy-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-31T20:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-83589\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-83589"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 82.0, "source": "matching"}]}, "product": "oauth2_proxy", "vendor": "oauth2_proxy_project"}], "created": "2026-09-02T04:45:17.725347+00:00", "updated": "2026-10-01T11:45:07.595320+00:00", "vendors": ["oauth2_proxy_project", "oauth2_proxy_project$PRODUCT$oauth2_proxy"]}