Description
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.
Published: 2026-09-30
Score: 7.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Wed, 30 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 30 Sep 2026 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache wss4j
Weaknesses CWE-665
Vendors & Products Apache
Apache wss4j

Wed, 30 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
References

Wed, 30 Sep 2026 12:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Apache WSS4J: WS-SecurityPolicy signature checks skipped in the streaming code after an STR-Transform reference
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-09-30T19:51:55.272Z

Reserved: 2026-09-15T16:17:48.810Z

Link: CVE-2026-92121

cve-icon Vulnrichment

Updated: 2026-09-30T12:12:24.367Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-30T13:17:21.710

Modified: 2026-09-30T20:17:36.800

Link: CVE-2026-92121

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T13:30:17Z

Weaknesses
  • CWE-665

    Improper Initialization

  • CWE-693

    Protection Mechanism Failure