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CVE-2026-100227 Details

Description

Improper Verification of Cryptographic Signature vulnerability in Apache CXF's JAX-RS XML Security module. The JAX-RS XML Signature interceptors (XmlSigInHandler, XmlSigInInterceptor and the streaming XmlSecInInterceptor) did not ensure that the XML passed to the application was covered by the signature. An attacker with any document signed by a trusted key could wrap it in unsigned content, which the application would then treat as signed. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://www.openwall.com/lists/oss-security/2026/10/09/11	CVE	Mailing ListThird Party Advisory
https://lists.apache.org/thread.html/pst2oopnwt2rwhvkvmt5gdgwn36kq05m	[email protected]	Issue TrackingVendor AdvisoryMailing List

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-362	Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')	CISA-ADP

Affected Products

Product	Versions
apache cxf	< 3.6.13 >= 4.0.0, < 4.1.9 >= 4.2.0, < 4.2.4
CPE cpe:2.3:a:apache:cxf:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Oct 16, 2026	Initial Analysis	[email protected]
Oct 15, 2026	CVE Modified	CISA-ADP
Oct 9, 2026	CVE Modified	CVE
Oct 9, 2026	New CVE Received	[email protected]