CVE-2026-91866

Apache Neethi: Crafted policies cause unbounded work during intersection leading to denial of service

State: Published
Severity: 7.5 High
Published: Sep 21, 2026
Updated: Sep 21, 2026
Reserved: Sep 15, 2026

Description

A specially crafted pair of WS-Policy documents can force Neethi's policy-intersection to do exponential amounts of work, pinning the CPU for a long time (denial of service). Users are recommended to upgrade to version 3.2.4, which fixes this issue.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

Product	Versions
Apache NeethiApache Software Foundation	before 3.2.4Affected

References

https://lists.apache.org/thread/zbfxnomgvbmqchqjgc6lk5h0z76k3gh4vendor-advisory
http://www.openwall.com/lists/oss-security/2026/09/18/13

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