CVE-2026-94276

Improper Authentication vulnerability in Apache APISIX. On 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. Users are recommended to upgrade to version 3.19.0, which fixes the issue.

Score

CVSS 4.0 5.1 Medium

Status

Deferred - security@apache.org

Published

2026-10-01

Last modified

2026-10-01

Weaknesses

CWE-287

Affected products

• Apache Apisix (Apache Software Foundation)

References

• https://lists.apache.org/thread.html/txn3br25kl657fh15rwcy1oht1xbpyyk
• http://www.openwall.com/lists/oss-security/2026/10/01/8