GHSA-9mrv-8pvf-hf4mCriticalCVSS 9.1
Apache CXF OAuth2 Missing JWT Audience and Issuer Validation in Access Token Validator
🔗 CVE IDs covered (1)
📋 Description
The JwtAccessTokenValidator class in Apache CXF fails to validate the 'aud' (Audience) claims of incoming JWT access tokens. This allows a JWT issued for one Resource Server to be successfully replayed against a completely different Resource Server, leading to Token Confusion/Routing attacks. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.
🎯 Affected products2
- maven/org.apache.cxf:cxf-rt-rs-security-oauth2:>= 4.2.0, < 4.2.2
- maven/org.apache.cxf:cxf-rt-rs-security-oauth2:< 4.1.7
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2026-50627
- https://lists.apache.org/thread/0jfzz9q992957b99tw7hodcqjfyxwb1m
- http://www.openwall.com/lists/oss-security/2026/06/11/4
- https://access.redhat.com/security/cve/CVE-2026-50627
- https://bugzilla.redhat.com/show_bug.cgi?id=2488298
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50627.json
- https://access.redhat.com/errata/RHSA-2026:37390
- https://github.com/advisories/GHSA-9mrv-8pvf-hf4m