{"id":"CVE-2026-42403","aliases":["GHSA-2hfh-9h53-qc24"],"url":"https://o3.security/vulnerability/CVE-2026-42403","summary":"Apache Neethi: Circular Policy Reference Infinite Loop","details":"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\n\nUsers are recommended to upgrade to version 3.2.2, which fixes this issue.","published":"2026-05-01T08:38:16.035Z","modified":"2026-09-11T11:46:11.796487303Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00763,"percentile":0.52242,"asOf":"2026-08-14"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.neethi:neethi","fixedVersion":"3.2.2"}],"fix":null,"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/01/7"},{"type":"WEB","url":"https://repo.maven.apache.org/maven2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42403.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/zm6t8skkkskjwk1881l4m4n0l7dqclzo"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42403"},{"type":"PACKAGE","url":"https://github.com/apache/ws-neethi"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-11T11:46:11.796487303Z"}}