Critical 9.1Published Jun 12, 2026

CVE-2026-50627Apache CXF: OAuth2: Missing JWT Audience and Issuer Validation in Access Token Validator

Updated under an hour ago (Oct 27, 2026, 10:10 PM ET)

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It affects Apache Software Foundation Apache CXF and 5 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Apache Software Foundation Apache CXF

Exploited in the last 30 days

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: 9.1 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-289, CWE-303
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apache
NVD analysis: Modified
Record last updated: Aug 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache CXF apache_software_foundation:apache_cxf (from the name)	from 4.2.0 before 4.2.2; from 4.0.0 before 4.1.7; before 3.6.12	CNA record
Red Hat Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16 redhat:apache_camel_spring_boot	from security-oauth2 not affected	CISA ADP
Red Hat Red Hat Fuse 7 redhat:jboss_fuse	7	CISA ADP
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack redhat:jbosseapxp	Versions not stated	CISA ADP
Red Hat Red Hat JBoss Web Server 5 redhat:jboss_enterprise_web_server	5	CISA ADP
apache cxf apache:cxf	before 4.1.7; from 4.2.0 before 4.2.2	NVD

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.