{"id":"CVE-2026-91863","title":"A specially crafted WS-Policy document with deeply nested policy elements can bypass Neethi's nesting-depth limit and exhaust the thread stack, crashing the parser (denial of service).\nUsers are recommended to upgrade to version 3.2.4, w…","summary":"A specially crafted WS-Policy document with deeply nested policy elements can bypass Neethi's nesting-depth limit and exhaust the thread stack, crashing the parser (denial of service).\nUsers are recommended to upgrade to version 3.2.4, w…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-674"],"vendor":"Apache Software Foundation","product":"org.apache.neethi:neethi","affected":["org.apache.neethi:neethi < 3.2.4"],"published":"2026-09-21","updated":"2026-09-21","sourceUpdated":"2026-09-21T18:10:30.343","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-91863","references":[{"url":"https://lists.apache.org/thread/72kxj71lvrqqx90xxqqctvpbw0t8mpxw","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/09/18/10","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-21T13:35:51.992035Z"},"ingestedAt":"2026-09-21T11:35:54.434Z","slug":"CVE-2026-91863","body":"## Overview\n\nA specially crafted WS-Policy document with deeply nested policy elements can bypass Neethi's nesting-depth limit and exhaust the thread stack, crashing the parser (denial of service).\nUsers are recommended to upgrade to version 3.2.4, which fixes this issue.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":208415,"id":"CVE-2026-91863","ts":1790001584819,"field":"cvss","old":null,"new":"7.5"},{"seq":208414,"id":"CVE-2026-91863","ts":1790001584819,"field":"severity","old":"none","new":"high"}]}