CVE-2026-76235
Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html
CVSS 3.1 7.5 HIGHCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-76235
PublishedA 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.
Read the publisher's advisoryAffected versions, risk and source history
Related advisories and sources
Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.
CVE-2026-76235 · CVE overview and exploitation status
cve-program · CVE-2026-76235
- https://access.redhat.com/errata/RHSA-2026:94485
- https://access.redhat.com/errata/RHSA-2026:94533
- https://access.redhat.com/errata/RHSA-2026:96250
- https://access.redhat.com/errata/RHSA-2026:98463
- https://access.redhat.com/errata/RHSA-2026:98567
- https://access.redhat.com/security/cve/CVE-2026-76235
- https://bugzilla.redhat.com/show_bug.cgi?id=2519497
Related changes
Linked by CVE identifier- Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html · Affected-version evidence changed · 11 Nov 2026
- Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html · Affected-version evidence changed · 11 Nov 2026
- Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html · Affected-version evidence changed · 9 Nov 2026
- Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html · Affected-version evidence changed · 6 Nov 2026
- Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html · Affected-version evidence changed · 4 Nov 2026
- Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html · Affected-version evidence changed · 3 Nov 2026