{"id":"CVE-2026-111814","title":"Apache Traffic Server: Default server_session_sharing.match omits MASK_CERT, allowing pooled mTLS identity confusion at the origin","summary":"Apache Traffic Server's default outbound session-sharing policy can reuse a pooled TLS session authenticated with one client certificate for a transaction configured to present a different one.\n\n\n\nThis issue affects Apache Traffic Server…","severity":"critical","cvss":10,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","cvssSource":"cna","cwe":["CWE-295"],"vendor":"Apache Software Foundation","product":"Apache Traffic Server","affected":["apache_traffic_server >= 9.0.0 <= 9.2.15","apache_traffic_server >= 10.0.0 <= 10.1.4","apache_traffic_server 10.2.0"],"published":"2026-10-21","updated":"2026-10-21","sourceUpdated":"2026-10-21T19:13:06.888Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111814","references":[{"url":"https://lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc"}],"tags":["cve.org"],"ingestedAt":"2026-10-21T20:11:44.910Z","slug":"CVE-2026-111814","body":"## Overview\n\nApache Traffic Server's default outbound session-sharing policy can reuse a pooled TLS session authenticated with one client certificate for a transaction configured to present a different one.\n\n\n\nThis issue affects Apache Traffic Server: from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0.\n\n\n\nUsers are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.\n\n## Affected\n\n- `apache_traffic_server >= 9.0.0 <= 9.2.15`\n- `apache_traffic_server >= 10.0.0 <= 10.1.4`\n- `apache_traffic_server 10.2.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":55,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}