{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-76235","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2026-08-19T11:37:44.676Z","datePublished":"2026-08-19T12:44:55.680Z","dateUpdated":"2026-08-19T12:44:55.680Z"},"containers":{"cna":{"title":"Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html","metrics":[{"other":{"content":{"value":"Moderate","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"cockpit","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"cockpit","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"cockpit","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"cockpit","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:9"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Dev Spaces","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"devspaces/udi-base-rhel10","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_devspaces:3"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Dev Spaces","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"devspaces/udi-base-rhel9","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_devspaces:3"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Dev Spaces","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"devspaces/udi-rhel9","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:openshift_devspaces:3"]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-76235","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2519497","name":"RHBZ#2519497","tags":["issue-tracking","x_refsource_REDHAT"]}],"datePublic":"2026-08-19T00:00:00.000Z","problemTypes":[{"descriptions":[{"cweId":"CWE-401","description":"Missing Release of Memory after Effective Lifetime","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-401: Missing Release of Memory after Effective Lifetime","workarounds":[{"lang":"en","value":"Restrict network access to the cockpit port to trusted clients until a fix is available. No configuration-level mitigation removes the flaw entirely, since the login page must remain reachable without authentication."}],"timeline":[{"lang":"en","time":"2026-08-11T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-08-19T00:00:00.000Z","value":"Made public."}],"credits":[{"lang":"en","value":"Red Hat would like to thank Arpit Jain for reporting this issue."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2026-08-19T12:44:55.680Z"},"x_generator":{"engine":"cvelib 1.8.0"}}}}