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CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2026-50627

Apache CXF: OAuth2: Missing JWT Audience and Issuer Validation in Access Token Validator

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Status
Published
Published
Updated
Assigning organization
apache

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 or 3.6.12, which fixes this issue.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache CXF

Default version status: unaffected

  • 4.2.0 to < 4.2.2affected
  • 4.0.0 to < 4.1.7affected
  • 0 to < 3.6.12affected

References