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.

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History

Fri, 12 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*

Fri, 12 Jun 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 12 Jun 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache cxf
Vendors & Products Apache
Apache cxf

Fri, 12 Jun 2026 10:30:00 +0000

Type Values Removed Values Added
References

Fri, 12 Jun 2026 09:45:00 +0000

Type Values Removed Values Added
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.
Title Apache CXF: Authentication Bypass in OAuth2 TokenIntrospectionService
Weaknesses CWE-287
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-06-12T15:13:02.371Z

Reserved: 2026-06-05T10:20:37.692Z

Link: CVE-2026-50623

cve-icon Vulnrichment

Updated: 2026-06-12T09:27:59.385Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-12T10:16:22.467

Modified: 2026-06-12T19:07:52.217

Link: CVE-2026-50623

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-12T20:30:06Z

Weaknesses