cockpit: A memory leak flaw was found in cockpit-ws
CVE-2026-76235 is fixed in 8 products on 1 platform, first by DEBIAN-CVE-2026-76235, released August 28, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| cockpit · Debian 13.5 (trixie) | 337-1+deb13u2 | DEBIAN-CVE-2026-76235 | Aug 28, 2026 |
| cockpit · Debian 14 | 366-1 | DEBIAN-CVE-2026-76235 | Aug 28, 2026 |
| cockpit · RHEL 8 | 0:310.10-1.el8_10 | RHSA-2026:94485 | Nov 4, 2026 |
| cockpit · RHEL 9 | 0:356.4-1.el9_8 | RHSA-2026:94533 | Nov 4, 2026 |
| cockpit · almalinux 8 | 310.10-1.el8_10 | ALSA-2026:94485 | Nov 7, 2026 |
| cockpit · almalinux 9 | 356.4-1.el9_8 | ALSA-2026:94533 | Nov 7, 2026 |
| cockpit · ol 8 | 0:310.10-1.0.1.el8_10 | ELSA-2026-94485 | Nov 7, 2026 |
| cockpit · ol 9 | 0:356.4-1.0.1.el9_8 | ELSA-2026-94533 | Nov 7, 2026 |
| cockpit · rocky 8 | 0:310.10-1.el8_10 | RLSA-2026:94485 | Nov 7, 2026 |
| cockpit · rocky 9 | 0:356.4-1.el9_8.rocky.0.1 | RLSA-2026:94533 | Nov 7, 2026 |
| cockpit-bridge · RHEL 8 | 0:310.10-1.el8_10 | RHSA-2026:94485 | Nov 4, 2026 |
| cockpit-bridge · RHEL 9 | 0:356.4-1.el9_8 | RHSA-2026:94533 | Nov 4, 2026 |
| cockpit-bridge · almalinux 8 | 310.10-1.el8_10 | ALSA-2026:94485 | Nov 7, 2026 |
| cockpit-bridge · almalinux 9 | 356.4-1.el9_8 | ALSA-2026:94533 | Nov 7, 2026 |
| cockpit-bridge · ol 8 | 0:310.10-1.0.1.el8_10 | ELSA-2026-94485 | Nov 7, 2026 |
| cockpit-bridge · ol 9 | 0:356.4-1.0.1.el9_8 | ELSA-2026-94533 | Nov 7, 2026 |
| cockpit-doc · RHEL 8 | 0:310.10-1.el8_10 | RHSA-2026:94485 | Nov 4, 2026 |
| cockpit-doc · RHEL 9 | 0:356.4-1.el9_8 | RHSA-2026:94533 | Nov 4, 2026 |
| cockpit-doc · almalinux 8 | 310.10-1.el8_10 | ALSA-2026:94485 | Nov 7, 2026 |
| cockpit-doc · almalinux 9 | 356.4-1.el9_8 | ALSA-2026:94533 | Nov 7, 2026 |
| cockpit-doc · ol 8 | 0:310.10-1.0.1.el8_10 | ELSA-2026-94485 | Nov 7, 2026 |
| cockpit-doc · ol 9 | 0:356.4-1.0.1.el9_8 | ELSA-2026-94533 | Nov 7, 2026 |
| cockpit-packagekit · RHEL 9 | 0:356.4-1.el9_8 | RHSA-2026:94533 | Nov 4, 2026 |
| cockpit-packagekit · almalinux 9 | 356.4-1.el9_8 | ALSA-2026:94533 | Nov 7, 2026 |
| cockpit-packagekit · ol 9 | 0:356.4-1.0.1.el9_8 | ELSA-2026-94533 | Nov 7, 2026 |
| cockpit-storaged · RHEL 9 | 0:356.4-1.el9_8 | RHSA-2026:94533 | Nov 4, 2026 |
| cockpit-storaged · almalinux 9 | 356.4-1.el9_8 | ALSA-2026:94533 | Nov 7, 2026 |
| cockpit-storaged · ol 9 | 0:356.4-1.0.1.el9_8 | ELSA-2026-94533 | Nov 7, 2026 |
| cockpit-system · RHEL 8 | 0:310.10-1.el8_10 | RHSA-2026:94485 | Nov 4, 2026 |
| cockpit-system · RHEL 9 | 0:356.4-1.el9_8 | RHSA-2026:94533 | Nov 4, 2026 |
| cockpit-system · almalinux 8 | 310.10-1.el8_10 | ALSA-2026:94485 | Nov 7, 2026 |
| cockpit-system · almalinux 9 | 356.4-1.el9_8 | ALSA-2026:94533 | Nov 7, 2026 |
| cockpit-system · ol 8 | 0:310.10-1.0.1.el8_10 | ELSA-2026-94485 | Nov 7, 2026 |
| cockpit-system · ol 9 | 0:356.4-1.0.1.el9_8 | ELSA-2026-94533 | Nov 7, 2026 |
| cockpit-ws · RHEL 8 | 0:310.10-1.el8_10 | RHSA-2026:94485 | Nov 4, 2026 |
| cockpit-ws · RHEL 9 | 0:356.4-1.el9_8 | RHSA-2026:94533 | Nov 4, 2026 |
| cockpit-ws · almalinux 8 | 310.10-1.el8_10 | ALSA-2026:94485 | Nov 7, 2026 |
| cockpit-ws · almalinux 9 | 356.4-1.el9_8 | ALSA-2026:94533 | Nov 7, 2026 |
| cockpit-ws · ol 8 | 0:310.10-1.0.1.el8_10 | ELSA-2026-94485 | Nov 7, 2026 |
| cockpit-ws · ol 9 | 0:356.4-1.0.1.el9_8 | ELSA-2026-94533 | Nov 7, 2026 |
| cockpit-ws-selinux · RHEL 9 | 0:356.4-1.el9_8 | RHSA-2026:94533 | Nov 4, 2026 |
| cockpit-ws-selinux · almalinux 9 | 356.4-1.el9_8 | ALSA-2026:94533 | Nov 7, 2026 |
| cockpit-ws-selinux · ol 9 | 0:356.4-1.0.1.el9_8 | ELSA-2026-94533 | Nov 7, 2026 |
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