CVE-2026-100227

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread.html/pst2oopnwt2rwhvkvmt5gdgwn36kq05m	Issue Tracking Vendor Advisory Mailing List
http://www.openwall.com/lists/oss-security/2026/10/09/11	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:cxf::::::::
	cpe:2.3:a:apache:cxf::::::::
	cpe:2.3:a:apache:cxf::::::::

History

16 Oct 2026, 18:09

Type	Values Removed	Values Added
References	~~() https://lists.apache.org/thread.html/pst2oopnwt2rwhvkvmt5gdgwn36kq05m -~~	() https://lists.apache.org/thread.html/pst2oopnwt2rwhvkvmt5gdgwn36kq05m - Issue Tracking, Vendor Advisory, Mailing List
References	~~() http://www.openwall.com/lists/oss-security/2026/10/09/11 -~~	() http://www.openwall.com/lists/oss-security/2026/10/09/11 - Mailing List, Third Party Advisory
First Time		Apache cxf Apache
CPE		cpe:2.3:a:apache:cxf::::::::

15 Oct 2026, 18:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CWE		CWE-362

09 Oct 2026, 12:17

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/10/09/11 -

09 Oct 2026, 11:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-09 11:17

Updated : 2026-10-16 18:09

NVD link : CVE-2026-100227

Mitre link : CVE-2026-100227

CVE.ORG link : CVE-2026-100227

JSON object : View

Products Affected

apache

cxf

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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