{"id":"CVE-2026-94276","title":"Improper Authentication vulnerability in Apache APISIX.\n\nOn a route using openid-connect plugin with remote introspection against an authorization server that serves multiple issuers, a token that introspects as active for one issuer may…","summary":"Improper Authentication vulnerability in Apache APISIX.\n\nOn a route using openid-connect plugin with remote introspection against an authorization server that serves multiple issuers, a token that introspects as active for one issuer may…","severity":"medium","cvss":5.1,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N","cwe":["CWE-287"],"vendor":"Apache Software Foundation","product":"Apache APISIX","affected":["apache_apisix >= 3.12.0 <= 3.18.0"],"published":"2026-10-01","updated":"2026-10-01","sourceUpdated":"2026-10-01T12:54:27.463","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-94276","references":[{"url":"https://lists.apache.org/thread.html/txn3br25kl657fh15rwcy1oht1xbpyyk","label":"security@apache.org"}],"tags":["nvd","cve.org"],"cvssSource":"cna","ingestedAt":"2026-10-01T11:42:53.819Z","slug":"CVE-2026-94276","body":"## Overview\n\nImproper Authentication vulnerability in Apache APISIX.\n\nOn a route using openid-connect plugin with remote introspection against an authorization server that serves multiple issuers, a token that introspects as active for one issuer may get accepted on a route restricted to another. This issue affects Apache APISIX: from 3.12.0 through 3.18.0.\n\nUsers are recommended to upgrade to version 3.19.0, which fixes the issue.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":28.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}