{"id":"CVE-2026-75886","title":"A flaw was found in openshift/console","summary":"A flaw was found in openshift/console. An unauthenticated remote attacker can exploit a misconfiguration in the CatalogdHandler, which lacks proper authentication, and the forwarding of the `openshift-session-token` cookie. This allows t…","severity":"high","cvss":7.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","cwe":["CWE-441"],"vendor":"Red Hat","product":"openshift4/ose-console-rhel9","affected":["openshift4/ose-console-rhel9 (all versions)","openshift4/ose-console-rhel9 (all versions)","openshift4/ose-console-rhel9 (all versions)","openshift4/ose-console-rhel9 (all versions)","openshift4/ose-console-rhel9 (all versions)","openshift4/ose-console-rhel9 (all versions)","openshift4/ose-console"],"patched":["openshift_container_platform 4.20","openshift_container_platform 4.21","openshift_container_platform 4.22"],"published":"2026-09-23","updated":"2026-10-01","sourceUpdated":"2026-10-01T17:17:31.437","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-75886","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:70587","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:70617","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:71447","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:71450","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:71453","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:71454","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-75886","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2517886","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-75886.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-75886"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75886"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-24T13:53:58.349525Z"},"epss":0.00331,"epssPercentile":0.26162,"ingestedAt":"2026-09-23T21:33:13.537Z","slug":"CVE-2026-75886","body":"## Overview\n\nA flaw was found in openshift/console. An unauthenticated remote attacker can exploit a misconfiguration in the CatalogdHandler, which lacks proper authentication, and the forwarding of the `openshift-session-token` cookie. This allows the attacker to send requests to the in-cluster catalogd service, leading to the disclosure of the internal operator-catalog index and providing a relay into the openshift-catalogd namespace.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat OpenShift Container Platform 4 · updated 2026-09-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-75886.json)\n- **RHSA-2026:71450** · Red Hat · fixed in: Red Hat OpenShift Container Platform 4.20 · released 2026-09-29 · [advisory](https://access.redhat.com/errata/RHSA-2026:71450)\n- **RHSA-2026:71453** · Red Hat · fixed in: Red Hat OpenShift Container Platform 4.21 · released 2026-09-29 · [advisory](https://access.redhat.com/errata/RHSA-2026:71453)\n- **RHSA-2026:71454** · Red Hat · fixed in: Red Hat OpenShift Container Platform 4.22 · released 2026-09-29 · [advisory](https://access.redhat.com/errata/RHSA-2026:71454)","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":39.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}