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Medium · 5.3 CVE-2026-45795 EUVD-2026-44969

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

Published Jul 16, 2026 · Updated Jul 16, 2026 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
JanssenProject jans < 2.0.0 —

References