{"id":"CVE-2026-91142","title":"A flaw was found in Cockpit","summary":"A flaw was found in Cockpit. An authenticated local user with a large user identifier (UID) can cause unauthorized modification and disclosure of login records. On 32-bit systems, an integer overflow during session accounting allows the …","severity":"low","cvss":3.6,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-190","CWE-787"],"vendor":"Red Hat","product":"cockpit","affected":["cockpit (all versions)","cockpit","cockpit","cockpit (all versions)","devspaces/udi-base-rhel10","devspaces/udi-base-rhel9","devspaces/udi-rhel9"],"published":"2026-09-18","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:19:43.197","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-91142","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-91142","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479459","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91142.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-91142"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91142"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00119,"epssPercentile":0.01774,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-18T17:09:31.218316Z"},"ingestedAt":"2026-09-18T16:45:41.403Z","slug":"CVE-2026-91142","body":"## Overview\n\nA flaw was found in Cockpit. An authenticated local user with a large user identifier (UID) can cause unauthorized modification and disclosure of login records. On 32-bit systems, an integer overflow during session accounting allows the user's login process to read or overwrite the legacy log entries of other accounts.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Dev Spaces · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91142.json)","depth":"sunlit","depthScore":20,"depthScoreParts":{"impact":19.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}