CVE-2026-45795

MEDIUM

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

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 5.3
EPSS 0.0016
EPSS Percentile 5.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-347
Status published
Products (1)
JanssenProject/jans < 2.0.0
Published Jul 16, 2026
Tracked Since Jul 16, 2026