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Message-ID: <56c6388b-da6e-dda0-a947-f6ea442eb6f0@apache.org>
Date: Fri, 18 Sep 2026 15:30:31 +0000
From: Colm O hEigeartaigh <coheigea@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-91865: Apache Neethi: Crafted policy references cause
exponential expansion during normalization leading to denial of service
Severity: moderate
Affected versions:
- Apache Neethi (org.apache.neethi:neethi) before 3.2.4
Description:
A small WS-Policy document using repeated policy references can force Neethi to re-expand the same references exponentially during normalization, consuming huge amounts of CPU and memory (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-2026-91865
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