Critical 9.1Published Aug 6, 2026

CVE-2026-65583Apache CXF: Self-issued ID token claims validation skipped

Updated under an hour ago (2026-10-19 07:00 UTC)

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It affects Apache Software Foundation Apache CXF and 1 other product. 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

Apache CXF’s OIDC relying-party token validation could accept self-issued ID tokens without enforcing required claim checks (issuer/subject/audience/time and sub_jwk binding), enabling authentication bypass with crafted tokens. However, note that self-issued ID tokens are not accepted by default in the validator. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fixes this issue.

CVSS: 9.1 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-345
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 7, 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 4.2.3; from 4.0.0 before 4.1.8; before 3.6.12	CNA record
apache cxf apache:cxf	before 3.6.12; from 4.0.0 before 4.1.8; from 4.2.0 before 4.2.3	NVD

References

https://lists.apache.org/thread/fzj8yzgfl53gclxrcdrnrx3grcpkq51jvendor-advisory, mailing-list
http://www.openwall.com/lists/oss-security/2026/08/06/23

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.