CVE-2026-50623
MEDIUMCVSS v3.1: 4.8 · EPSS: 0.0052 (39.6 percentile)
Source data as of:
At a glance
- Severity
- MEDIUM
- CVSS
- 4.8 v3.1 · NVD
- EPSS
- 0.0052 (39.6 percentile) · FIRST.org
- CISA KEV
- No
- Type
- Improper Authentication · NVD CWE
- Attack conditions (CVSS vector)
- NetworkNo privilegesNo user interaction · Source: NVD Vector
- Affected vendors
- apache
- Published
- 2026-06-12 · Modified: 2026-06-16
- References
- Jump to references (2)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
Description
An authentication bypass vulnerability exists in the OAuth2 TokenIntrospectionService in Apache CXF. Due to a missing 'throw' keyword in the security context check, the introspection endpoint (/services/oauth2/introspect) can be accessed by any unauthenticated network attacker. However note that this is a safeguard only in the case that someone forgot to enable authentication on the service. Users are recommended to upgrade to version 4.2.2 or 4.1.7, which fixes this issue.
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.