{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-42965", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-05-28T06:07:06.564Z", "datePublished": "2026-05-29T09:50:44.429Z", "dateUpdated": "2026-11-04T15:24:21.991Z"}, "containers": {"cna": {"title": "Openshift/router: openshift/router: cloud metadata ssrf via fqdn-typed endpointslice bypasses destination validation", "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": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in the OpenShift Router. A user with EndpointSlice write access can exploit this vulnerability by creating a Service backed by an FQDN (Fully Qualified Domain Name) EndpointSlice that resolves to a cloud metadata endpoint. This allows the router to proxy requests to the cloud metadata endpoint, leading to the disclosure of instance credentials and other sensitive metadata. This bypasses previous security measures for validating IP addresses."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4.17", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "openshift4/ose-haproxy-router-rhel9", "defaultStatus": "affected", "versions": [{"version": "1789938693", "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-haproxy-router-rhel9", "defaultStatus": "affected", "versions": [{"version": "1788578875", "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-haproxy-router-rhel9", "defaultStatus": "affected", "versions": [{"version": "1786771399", "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-haproxy-router-rhel9", "defaultStatus": "affected", "versions": [{"version": "1786496552", "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-haproxy-router-rhel9", "defaultStatus": "affected", "versions": [{"version": "1786498169", "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-haproxy-router-rhel9", "defaultStatus": "affected", "versions": [{"version": "1786584196", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:openshift:4.22::el9"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "openshift4/ose-haproxy-router", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift:4"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 5", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "openshift5/ose-haproxy-router-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift:5"]}], "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:54583", "name": "RHSA-2026:54583", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:54602", "name": "RHSA-2026:54602", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:54770", "name": "RHSA-2026:54770", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:57408", "name": "RHSA-2026:57408", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:65852", "name": "RHSA-2026:65852", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:70587", "name": "RHSA-2026:70587", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2026-42965", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2483184", "name": "RHBZ#2483184", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-04-17T21:46:19.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-918", "description": "Server-Side Request Forgery", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-918: Server-Side Request Forgery", "timeline": [{"lang": "en", "time": "2026-04-17T21:46:19.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-04-17T21:46:19.000Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "This issue was discovered by Ricardo Pchevuzinske Katz (Red Hat)."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-04T15:24:21.991Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-30T02:24:09.743182Z", "id": "CVE-2026-42965", "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": "2026-05-30T02:24:19.798Z"}}, {"affected": [{"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.19::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-haproxy-router-rhel9", "product": "Red Hat OpenShift Container Platform 4.19", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1786771399", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.20::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-haproxy-router-rhel9", "product": "Red Hat OpenShift Container Platform 4.20", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1786496552", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.21::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-haproxy-router-rhel9", "product": "Red Hat OpenShift Container Platform 4.21", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1786498169", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:openshift:4.22::el9"], "defaultStatus": "affected", "packageName": "openshift4/ose-haproxy-router-rhel9", "product": "Red Hat OpenShift Container Platform 4.22", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1786584196", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:openshift:4"], "defaultStatus": "affected", "packageName": "openshift4/ose-haproxy-router", "product": "Red Hat OpenShift Container Platform 4", "vendor": "Red Hat"}], "datePublic": "2026-04-17T21:46:19.000Z", "descriptions": [{"lang": "en", "value": "A flaw was found in the OpenShift Router. A user with EndpointSlice write access can exploit this vulnerability by creating a Service backed by an FQDN (Fully Qualified Domain Name) EndpointSlice that resolves to a cloud metadata endpoint. This allows the router to proxy requests to the cloud metadata endpoint, leading to the disclosure of instance credentials and other sensitive metadata. This bypasses previous security measures for validating IP addresses."}], "metrics": [{"other": {"content": {"namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-918", "description": "Server-Side Request Forgery (SSRF)", "lang": "en", "type": "CWE"}]}], "references": [{"tags": ["vdb-entry", "x_refsource_REDHAT"], "url": "https://access.redhat.com/security/cve/CVE-2026-42965"}, {"name": "RHBZ#2483184", "tags": ["issue-tracking", "x_refsource_REDHAT"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2483184"}, {"tags": ["x_sadp-csaf-vex"], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42965.json"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:57408"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:54583"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:54602"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:54770"}], "solutions": [{"lang": "en", "value": "RHSA-2026:57408: Red Hat OpenShift Container Platform 4.19"}, {"lang": "en", "value": "RHSA-2026:54583: Red Hat OpenShift Container Platform 4.20"}, {"lang": "en", "value": "RHSA-2026:54602: Red Hat OpenShift Container Platform 4.21"}, {"lang": "en", "value": "RHSA-2026:54770: Red Hat OpenShift Container Platform 4.22"}], "timeline": [{"lang": "en", "time": "2026-04-17T21:46:19.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-04-17T21:46:19.000Z", "value": "Made public."}], "title": "openshift/router: openshift/router: cloud metadata SSRF via FQDN-typed EndpointSlice bypasses destination validation", "x_adpType": "supplier", "x_generator": {"engine": "sadp-cli 1.0.0"}, "providerMetadata": {"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-09-10T12:04:52.390Z"}}]}}
CVE record
NVD configurations
Red Hat packages
No data
OpenCVE enrichment
