CVE-2026-50623

6.5 MEDIUM
Published: June 12, 2026 Modified: June 12, 2026
View on NVD

Description

An authentication bypass vulnerability exists in the OAuth2 TokenIntrospectionService in Apache CXF.ย 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.ย Users are recommended to upgrade to version 4.2.2 or 4.1.7, which fixes this issue.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://lists.apache.org/thread/ydzj8m5mqmjy13xgyj9mkk9hfff63qq7
Source: security@apache.org
Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/11/3
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.5 / 10.0
EPSS (Exploit Probability)
0.1%
32th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

apache