{"id":"CVE-2026-111804","title":"Apache Traffic Server: wasm plugin has a use-after-free and forwards unvalidated guest metric IDs","summary":"Apache Traffic Server's experimental wasm plugin has a use-after-free in its transaction-close handler and forwards unvalidated guest-supplied metric IDs to the internal stats API.\n\n\n\nThis issue affects Apache Traffic Server: from 10.0.0…","severity":"high","cvss":8.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","cvssSource":"cna","cwe":["CWE-416"],"vendor":"Apache Software Foundation","product":"Apache Traffic Server","affected":["apache_traffic_server >= 10.0.0 <= 10.1.4","apache_traffic_server 10.2.0"],"published":"2026-10-21","updated":"2026-10-21","sourceUpdated":"2026-10-21T18:21:32.055Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111804","references":[{"url":"https://lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc"}],"tags":["cve.org"],"ingestedAt":"2026-10-21T19:10:31.402Z","slug":"CVE-2026-111804","body":"## Overview\n\nApache Traffic Server's experimental wasm plugin has a use-after-free in its transaction-close handler and forwards unvalidated guest-supplied metric IDs to the internal stats API.\n\n\n\nThis issue affects Apache Traffic Server: from 10.0.0 through 10.1.4, 10.2.0.\n\n\n\nUsers are recommended to upgrade to version 10.1.5 or 10.2.1, which fix the issue.\n\n## Affected\n\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":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}