Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Neethi | < 3.2.2 |
Related Weaknesses (CWE)
References
- https://lists.apache.org/thread/zm6t8skkkskjwk1881l4m4n0l7dqclzoMailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/05/01/7Mailing ListThird Party Advisory
FAQ
What is CVE-2026-42403?
CVE-2026-42403 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 Pol...
How severe is CVE-2026-42403?
CVE-2026-42403 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-42403?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Neethi.