Improper Authentication in Apache CXF - CVE-2026-50623
Published: August 25, 2026
Vulnerability identifier: #VU145223
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-50623
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication.
The vulnerability exists due to improper access control in the OAuth2 TokenIntrospectionService introspection endpoint when handling requests to /services/oauth2/introspect. A remote attacker can send a request to the endpoint to bypass authentication.
This issue is exposed if authentication was not enabled on the service.
Affected software
Apache CXF
How to mitigate CVE-2026-50623
Install security update from vendor's website.
Apache CXF - addressed in versions 4.1.7, 4.2.2