CVE-2026-42403 HIGH

CVE-2026-42403: Apache Neethi: Circular Policy Reference Infinite Loop

Vendor Apache Software Foundation
Product Apache Neethi
Weakness CWE-400
Published May 1, 2026
Last update May 1, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

Description

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.

Key dates

Disclosure timeline

May 1, 2026 CVE published
May 1, 2026 Record updated