CVE-2026-50623

medium Apache
CVSS v3 Base Score
4.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Score
0.5%
Exploitation probability in 30 days
Top 60% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Published: June 12, 2026 (27 days ago)
Last Modified: June 16, 2026
Vendor: Apache
Source: NVD

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.

CWE

CWE-287

Affected Products

apache cxf

References

🔗 lists.apache.org 🔗 www.openwall.com