CVE-2026-91865: Apache Neethi

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

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.

Affected products

• Apache Neethi: before 3.2.4 (fixed in 3.2.4)

Published 2026-09-21. Last modified 2026-09-25.