CVE-2026-76235

high

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.

References

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-62393

https://bugzilla.redhat.com/show_bug.cgi?id=2519497

https://access.redhat.com/security/cve/CVE-2026-76235

Details

Source: Mitre, NVD

Published: 2026-08-19

Updated: 2026-08-25

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.00608