CVE-2026-42403

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.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-26)

CWE

CWE-400

Published

2026-05-01

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• apache:neethi

Packages (OSV)

References

• https://lists.apache.org/thread/zm6t8skkkskjwk1881l4m4n0l7dqclzo
• http://www.openwall.com/lists/oss-security/2026/05/01/7

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