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{"affected": [{"affectedData": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:10"], "defaultStatus": "affected", "packageName": "cockpit", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:7"], "defaultStatus": "affected", "packageName": "cockpit", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:8"], "defaultStatus": "affected", "packageName": "cockpit", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:9"], "defaultStatus": "affected", "packageName": "cockpit", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:openshift_devspaces:3"], "defaultStatus": "unaffected", "packageName": "devspaces/udi-base-rhel10", "product": "Red Hat OpenShift Dev Spaces", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:openshift_devspaces:3"], "defaultStatus": "unaffected", "packageName": "devspaces/udi-base-rhel9", "product": "Red Hat OpenShift Dev Spaces", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:openshift_devspaces:3"], "defaultStatus": "unaffected", "packageName": "devspaces/udi-rhel9", "product": "Red Hat OpenShift Dev Spaces", "vendor": "Red Hat"}], "source": "[email protected]"}], "cveTags": [], "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."}], "id": "CVE-2026-76235", "lastModified": "2026-08-20T13:08:53.900", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2026-08-19T13:18:11.637", "references": [{"source": "[email protected]", "url": "https://access.redhat.com/security/cve/CVE-2026-76235"}, {"source": "[email protected]", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519497"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "[email protected]", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Arpit Jain for reporting this issue.", "bugzilla": {"description": "cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via CockpitLang cookie in send_login_html", "id": "2519497", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519497"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-401", "details": ["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."], "mitigation": {"lang": "en:us", "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."}, "name": "CVE-2026-76235", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "impact": "moderate", "package_name": "cockpit", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "impact": "moderate", "package_name": "cockpit", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "impact": "moderate", "package_name": "cockpit", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "impact": "moderate", "package_name": "cockpit", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Not affected", "package_name": "devspaces/udi-base-rhel10", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Not affected", "package_name": "devspaces/udi-base-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Not affected", "package_name": "devspaces/udi-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}], "public_date": "2026-08-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-76235\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-76235"], "statement": "Red Hat rates this issue as Moderate impact. Although cockpit-ws is reachable by an unauthenticated remote client and the resulting memory exhaustion can be sustained indefinitely, cockpit-ws is a stateless web console component: its crash or restart does not itself compromise the confidentiality or integrity of the host or of other running services, and the process is automatically restarted by systemd.", "threat_severity": "Moderate"}

{"created": "2026-08-19T20:30:04.684683+00:00", "updated": "2026-08-20T05:15:04.428676+00:00", "vendors": []}