CVE-2026-50627

CRITICAL EPSS 31.2%
Published Jun 12, 20262w ago · Modified Jun 17, 20261w ago
9.1 CVSS 3.1
Critical
Find Similar
Published Jun 12, 2026 2w ago
Last Modified Jun 17, 2026 1w ago

Description

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, which fixes this issue.

CVSS Details

Base Score
9.1
Exploitability
2.3
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
31.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-289

Affected Products 2

VendorProductVersionRange
apachecxf* <4.1.7
apachecxf*≥4.2.0  –  <4.2.2

References 2

  • openwall.com http://www.openwall.com/lists/oss-security/2026/06/11/4
    Mailing ListThird Party Advisory
  • lists.apache.org https://lists.apache.org/thread/0jfzz9q992957b99tw7hodcqjfyxwb1m
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.