Improper access control in Apache CXF - CVE-2026-50627
Published: August 25, 2026
Vulnerability identifier: #VU145224
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-50627
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to replay JWT access tokens against a different resource server.
The vulnerability exists due to improper access control in the JwtAccessTokenValidator class when validating incoming JWT access tokens. A remote user can present a valid JWT issued for one resource server to replay JWT access tokens against a different resource server.
Affected software
Apache CXF
How to mitigate CVE-2026-50627
Install security update from vendor's website.
Apache CXF - addressed in versions 4.1.7, 4.2.2