CVE-2026-100227
Published:October 09, 2026
Updated:October 11, 2026
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 Packages
org.apache.cxf:cxf-rt-rs-security-xml (JAVA):
Affected version(s) >=4.2.0 <4.2.4Fix Suggestion:
Update to version 4.2.4org.apache.cxf:cxf-rt-rs-security-xml (JAVA):
Affected version(s) >=4.0.0 <4.1.9Fix Suggestion:
Update to version 4.1.9org.apache.cxf:cxf-rt-rs-security-xml (JAVA):
Affected version(s) >=2.5.0 <3.6.13Fix Suggestion:
Update to version 3.6.13Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE