CVE-2026-42403: Apache Neethi

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

Apache Neethi does not properly detect circular references in policy definitions. When a WS-Policy document contains circular policy references (where Policy A references Policy B which references Policy A), the policy normalization process can enter an infinite loop or cause excessive recursion, leading to a stack overflow or application hang. An attacker can craft malicious policy documents with circular references to cause a Denial of Service condition Users are recommended to upgrade to version 3.2.2, which fixes this issue.

Affected products

• Apache Neethi: before 3.2.2 (fixed in 3.2.2)

Published 2026-05-01. Last modified 2026-06-17.