Vulnerability in Apache Cxf
CVE-2026-50627
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 Resour…
EPSS: 0.004 (36.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Apache Cxf
- Apache Software Foundation Cxf — versions 4.2.0, 0
Weakness classification (CWE)
References
- security@apache.org (vendor-advisory, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2026-50627?
- CVE-2026-50627 is a critical-severity vulnerability in Apache Cxf, classified under CWE-289. CVSS score: 9.1/10. Published 2026-06-12.
- How severe is CVE-2026-50627?
- Critical severity. CVSS v3 base score is 9.1 out of 10.