{"id":"CVE-2026-80353","title":"tomcat: tomcat: Unauthorized socket access via TOCTOU race condition (CVE-2026-80353)","summary":"A flaw was found in Apache Tomcat. A local attacker can gain unauthorized access to Unix domain communication sockets due to a time-of-check to time-of-use (TOCTOU) race condition in the APR/Native connector. When the connector initializes…","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","cvssSource":"vendor","cwe":"CWE-367","vendor":"Red Hat","product":"Red Hat Hardened Images","affected":["hardened_images"],"patched":["hardened_images"],"published":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T23:32:57+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80353.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80353.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80353"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2556183"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80353"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80353"},{"url":"https://lists.apache.org/thread.html/tr0q87qwvs80p9hc53tkwpzvnx0ywftr"},{"url":"https://access.redhat.com/errata/RHSA-2026:85926"},{"url":"https://access.redhat.com/errata/RHSA-2026:81365"}],"tags":["csaf","vex","red-hat","cve.org"],"ingestedAt":"2026-10-20T14:08:00.572Z","epss":0.00155,"epssPercentile":0.04578,"slug":"CVE-2026-80353","body":"## Overview\n\nA flaw was found in Apache Tomcat. A local attacker can gain unauthorized access to Unix domain communication sockets due to a time-of-check to time-of-use (TOCTOU) race condition in the APR/Native connector. When the connector initializes a socket, a brief timing window exists before restrictive permissions are applied, allowing an unauthorized local user to connect to the socket and potentially intercept or manipulate local service communications.\n\n## Vendor advisories\n\n- **RHSA-2026:85926** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:85926)\n- **RHSA-2026:81365** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-12 · [advisory](https://access.redhat.com/errata/RHSA-2026:81365)\n\n**tomcat: tomcat: Unauthorized socket access via TOCTOU race condition** — rated Low by Red Hat. Released 2026-10-20.\n\nFixed:\n\n- Red Hat Hardened Images\n\n## Remediation\n\nFor details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:85926\nFor details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/ https://access.redhat.com/errata/RHSA-2026:81365","depth":"sunlit","depthScore":20,"depthScoreParts":{"impact":19.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":227157,"id":"CVE-2026-80353","ts":1792585171553,"field":"cvss","old":null,"new":"3.6"},{"seq":227156,"id":"CVE-2026-80353","ts":1792585171553,"field":"severity","old":"none","new":"low"}]}