CVE-2026-100227

Published: Oct 9, 2026Modified: Oct 16, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitability: 3.9 / Impact: 3.6

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Affected (3)

Products: Apache: Cxf

1 product

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Apache Cxf	version < 3.6.13
Apache Cxf	4.0.0 ≤ version < 4.1.9
Apache Cxf	4.2.0 ≤ version < 4.2.4

Related CWEs

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

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (2)

https://lists.apache.org/thread.html/pst2oopnwt2rwhvkvmt5gdgwn36kq05m

Source: security@apache.org

Issue TrackingVendor AdvisoryMailing List

http://www.openwall.com/lists/oss-security/2026/10/09/11

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

Timeline

No history available yet.