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Message-ID: <0d19faef-ccf9-428e-8c2d-38d26c95560f@apache.org>
Date: Wed, 30 Sep 2026 10:29:52 +0000
From: Colm O hEigeartaigh <coheigea@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-87830: Apache WSS4J: Streaming WS-SecurityPolicy
validation may skip element-protection checks.
Severity: low
Affected versions:
- Apache WSS4J (org.apache.wss4j:wss4j-ws-security-policy-stax) 4.0.0 before 4.0.2
- Apache WSS4J (org.apache.wss4j:wss4j-ws-security-policy-stax) 3.0.0 before 3.0.6
- Apache WSS4J (org.apache.wss4j:wss4j-ws-security-policy-stax) before 2.4.4
Description:
In the StAX streaming WS-SecurityPolicy validator, certain relative or unsupported XPath expressions can be converted into paths that never match the actual XML element path. A remote SOAP peer may therefore send a required element without the expected signature or encryption.
Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.
Credit:
Reported by n0mi1k (finder)
References:
https://ws.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-87830
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