Bug 2488298 (CVE-2026-50627) - CVE-2026-50627 apache-cxf: org.apache.cxf/cxf-rt-rs-security-oauth2: Apache CXF: Token Confusion/Routing attacks due to improper validation of JWT audience claims
Summary: CVE-2026-50627 apache-cxf: org.apache.cxf/cxf-rt-rs-security-oauth2: Apache C...
Keywords:
Status: NEW
Alias: CVE-2026-50627
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-12 10:01 UTC by OSIDB Bzimport
Modified: 2026-07-09 15:30 UTC (History)
33 users (show)

Fixed In Version:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:37390 0 None None None 2026-07-09 15:30:22 UTC

Description OSIDB Bzimport 2026-06-12 10:01:15 UTC 
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.
Comment 3 errata-xmlrpc 2026-07-09 15:30:20 UTC 
This issue has been addressed in the following products:

  Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16

Via RHSA-2026:37390 https://access.redhat.com/errata/RHSA-2026:37390
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