{"cve":"CVE-2026-42402","nvd":{"published":"2026-05-01T09:16:16.980","modified":"2026-10-26T21:10:00.170","status":"Analyzed","description":"Apache Neethi is vulnerable to a Denial of Service attack through algorithmic complexity in policy normalization. Specially crafted WS-Policy documents can trigger an exponential Cartesian cross-product expansion during the normalization process, causing unbounded memory allocation that exhausts the JVM heap. This occurs when the normalization process generates an excessive number of policy alternatives without bounds, leading to runtime memory exhaustion.\n\nUsers should upgrade to 3.2.2 which limits the maximum number of normalized policy alternatives.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://lists.apache.org/thread/p826j0phhmr9f83wzpmys1y0bdfrr2q4","http://www.openwall.com/lists/oss-security/2026/05/01/6"],"products":["apache:neethi"],"source":"nvd","synced_at":"2026-10-26T21:38:48.864438205+00:00"},"epss":{"cve":"CVE-2026-42402","score":0.00711,"percentile":0.53292,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-g36m-9g3m-2vmp","url":"https://osv.dev/vulnerability/GHSA-g36m-9g3m-2vmp","summary":"Apache Neethi is vulnerable to a Denial of Service attack through algorithmic complexity in policy normalization","modified":"2026-09-10T03:51:05.517258827Z","packages":[{"ecosystem":"Maven","name":"org.apache.neethi:neethi","purl":"pkg:maven/org.apache.neethi/neethi","ranges":["<3.2.2"],"fixed":["3.2.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}