CVE record · CVE-2026-76235

Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html

CVSS 7.5 HighEPSS 0.0059 · 48th percentile

Published by the CVE Program (CNA: redhat) at 19 Aug 2026, 12:44 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Red Hat	Red Hat Enterprise Linux 8 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/	unaffected 0:310.10-1.el8_10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/	unaffected 0:356.4-1.el9_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/	unaffected 0:356.4-1.el9_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 10 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 7 Package name: cockpit https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat OpenShift Dev Spaces Package name: devspaces/udi-base-rhel10 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat OpenShift Dev Spaces Package name: devspaces/udi-base-rhel9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat OpenShift Dev Spaces Package name: devspaces/udi-rhel9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected

Identifiers: CVE-2026-76235
CNA: redhat
Weakness (CWE): CWE-401
Tags: Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 7
Red Hat OpenShift Dev Spaces
Denial of service
Published: 19 Aug 2026
Updated: 6 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.5	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0059, the 48th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

19 Aug 2026, 12:44 UTC Confirmed by the CVE List
19 Aug 2026, 13:18 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2026:94485 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:94533 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2026-76235 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2519497 issue-trackingredhat

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.