CVE-2026-76235CWE-401

CVE-2026-76235

High · published August 19, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
48.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00608 · 48.4th percentile
Weakness
CWE-401 · Missing Release of Memory after Effective Lifetime
Published
2026-08-19T17:18Z
References (2)
https://access.redhat.com/security/cve/CVE-2026-76235 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2519497 · [email protected]
EPSS history
Timeline
  • 19 AUG 12:44Z
    Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html
    cvelistv5