CVE-2026-45795

MEDIUM5.3

Janssen Project: JWE Request Object Signature Verification Bypass in jans-auth-server

Published Jul 16, 2026

Modified 1 months ago

Details

The Janssen Project is an open-source identity and access management (IAM) platform. Prior to 2.0.0, jans-auth-server accepts unsigned JWE request objects because JwtAuthorizationRequest skips inner signature validation when jwe.getSignedJWTPayload() returns null, and AuthzRequestService.processRequestObject() does not reject the unrecognized RSA-OAEP algorithm when forceSignedRequestObject=true. This issue is fixed in version 2.0.0.

References

WEB

https://github.com/JanssenProject/jans/commit/0cdd214870ee30eb2186261f21c85b9e9fc63b5c

WEB

https://github.com/JanssenProject/jans/pull/13438

WEB

https://github.com/JanssenProject/jans/releases/tag/v2.0.0

WEB

https://github.com/JanssenProject/jans/security/advisories/GHSA-r3gj-4pj2-9j3j

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-45795

CVSS Analysis