CVE-2026-45795CWE-347

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

Medium · published July 16, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
16.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00259 · 16.6th percentile
Weakness
CWE-347 · Improper Verification of Cryptographic Signature
Published
2026-07-16T16:35Z
EPSS history
Timeline
  • 16 JUL 16:35Z
    Janssen Project: JWE Request Object Signature Verification Bypass in jans-auth-server
    cvelistv5