CVE-2026-92121

In the WSS4J streaming (StAX) code, a signature reference using the WS-Security STR-Transform leaves an internal "inside signed content" flag permanently set. The WS-SecurityPolicy enforcer uses that flag to decide whether an element needs checking, so it stops evaluating SignedParts and SignedElements for the rest of the message. A policy requiring the SOAP Body to be signed is then satisfied even when the Body carries no signature, removing the protection against XML Signature Wrapping. Signature verification itself is unaffected. The DOM code is not affected. Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4 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/oop9p4hpl5o9byosb1qg3z7q1sgnn4pc	Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/09/30/12	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:wss4j::::::::
	cpe:2.3:a:apache:wss4j::::::::
	cpe:2.3:a:apache:wss4j::::::::

History

06 Oct 2026, 17:22

Type	Values Removed	Values Added
CPE		cpe:2.3:a:apache:wss4j::::::::
References	~~() https://lists.apache.org/thread.html/oop9p4hpl5o9byosb1qg3z7q1sgnn4pc -~~	() https://lists.apache.org/thread.html/oop9p4hpl5o9byosb1qg3z7q1sgnn4pc - Vendor Advisory
References	~~() http://www.openwall.com/lists/oss-security/2026/09/30/12 -~~	() http://www.openwall.com/lists/oss-security/2026/09/30/12 - Mailing List, Third Party Advisory
First Time		Apache Apache wss4j

30 Sep 2026, 20:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CWE		CWE-693

30 Sep 2026, 13:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-30 13:17

Updated : 2026-10-06 17:22

NVD link : CVE-2026-92121

Mitre link : CVE-2026-92121

CVE.ORG link : CVE-2026-92121

JSON object : View

Products Affected

apache

wss4j

CWE

CWE-693

Protection Mechanism Failure

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