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CVE-2026-76235

Fixed in a distro release EPSS <1%CVSS 7.5

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.

Published 2026-08-19 · CVE record · OSV

Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Dev Spaces

Distro releases

ReleasePackageFixed in
Debian 12cockpitno fix
Debian 13cockpit337-1+deb13u2
Debian 14cockpit366-1
Ubuntu 18.04 LTScockpitno fix
Ubuntu 20.04 LTScockpitno fix
Ubuntu 22.04 LTScockpitno fix
Ubuntu 24.04 LTScockpitno fix
Ubuntu 26.04 LTScockpitno fix
Ubuntu 26.10cockpitno fix