Improper Authentication in Apache APISIX - CVE-2026-94276
Published: October 1, 2026
Vulnerability identifier: #VU153092
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-94276
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to gain unauthorized access to resources restricted to another issuer.
The vulnerability exists due to improper authentication in the openid-connect plugin when performing remote token introspection. A remote user can present a token active for one issuer to a route restricted to another issuer to gain unauthorized access to resources restricted to another issuer.
The authorization server must serve multiple issuers.
Affected software
Apache APISIX
How to mitigate CVE-2026-94276
Install security update from vendor's website.
Apache APISIX - update to 3.19.0