CVE-2026-50627

The JwtAccessTokenValidator class in Apache CXF fails to validate the 'aud' (Audience) claims of incoming JWT access tokens. This allows a JWT issued for one Resource Server to be successfully replayed against a completely different Resource Server, leading to Token Confusion/Routing attacks. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://lists.apache.org/thread/0jfzz9q992957b99tw7hodcqjfyxwb1m	Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/11/4	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:37390
https://access.redhat.com/security/cve/CVE-2026-50627
https://bugzilla.redhat.com/show_bug.cgi?id=2488298
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50627.json

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:cxf::::::::
	cpe:2.3:a:apache:cxf::::::::

History

No history.

Information

Published : 2026-06-12 10:16

Updated : 2026-08-07 13:16

NVD link : CVE-2026-50627

Mitre link : CVE-2026-50627

CVE.ORG link : CVE-2026-50627

JSON object : View

Products Affected

apache

cxf

CWE

CWE-289

Authentication Bypass by Alternate Name

CWE-303

Incorrect Implementation of Authentication Algorithm

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