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Message-ID: <a545f376-6c34-1cda-a5e7-7267367edb82@apache.org>
Date: Fri, 18 Sep 2026 15:28:04 +0000
From: Colm O hEigeartaigh <coheigea@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-91863: Apache Neethi: Uncontrolled recursion while
parsing crafted WS-Policy documents allows denial of service
Severity: moderate
Affected versions:
- Apache Neethi (org.apache.neethi:neethi) before 3.2.4
Description:
A specially crafted WS-Policy document with deeply nested policy elements can bypass Neethi's nesting-depth limit and exhaust the thread stack, crashing the parser (denial of service).
Users are recommended to upgrade to version 3.2.4, which fixes this issue.
Credit:
This issue was found using Claude agents to study the security of open-source projects (finder)
References:
https://ws.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-91863
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