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
0.4%
Exploitation probability in 30 days
Top 70% 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 (86 days ago)
Last Modified: August 7, 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 or 3.6.12, which fixes this issue.

CWE

CWE-287

Affected Products

apache cxf

References

🔗 lists.apache.org 🔗 www.openwall.com