Vulnerability in Red Hat Enterprise Linux 8

[ Description ]Official description

A memory leak flaw was found in cockpit-ws. The login page handler leaks a heap allocation on every unauthenticated request that carries a CockpitLang cookie, allowing a remote unauthenticated attacker to exhaust memory on the host and cause a denial of service.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund2 Nov 2026WID-SEC-2026-4301

  Red Hat Enterprise Linux (cockpit): Multiple vulnerabilities allow denial of service Translated from German

  Risk mediumCVE-2026-76235CVE-2026-91147

[ References ]References

• access.redhat.com/errata/RHSA-2026:94485vendor-advisoryx_refsource_REDHAT
• access.redhat.com/errata/RHSA-2026:94533vendor-advisoryx_refsource_REDHAT
• access.redhat.com/security/cve/CVE-2026-76235vdb-entryx_refsource_REDHAT
• bugzilla.redhat.com/show_bug.cgiissue-trackingx_refsource_REDHAT