{"cve":"CVE-2016-4465","nvd":{"published":"2016-07-04T22:59:10.117","modified":"2026-06-17T00:47:36.567","status":"Modified","description":"The URLValidator class in Apache Struts 2 2.3.20 through 2.3.28.1 and 2.5.x before 2.5.1 allows remote attackers to cause a denial of service via a null value for a URL field.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-20"],"references":["http://jvn.jp/en/jp/JVN12352818/index.html","http://jvndb.jvn.jp/jvndb/JVNDB-2016-000114","http://www-01.ibm.com/support/docview.wss?uid=swg21987854","http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html","http://www.securityfocus.com/bid/91278"],"products":["apache:struts"],"source":"nvd","synced_at":"2026-10-19T20:38:51.654415212+00:00"},"epss":{"cve":"CVE-2016-4465","score":0.10365,"percentile":0.95721,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-xg75-68x3-7p3q","url":"https://osv.dev/vulnerability/GHSA-xg75-68x3-7p3q","summary":"Apache Struts vulnerable to possible DoS attack when using URLValidator","modified":"2024-02-16T08:09:14.212983Z","packages":[{"ecosystem":"Maven","name":"org.apache.struts:struts2-core","purl":"pkg:maven/org.apache.struts/struts2-core","ranges":[">=2.3.20 <2.3.29"],"fixed":["2.3.29"]},{"ecosystem":"Maven","name":"org.apache.struts:struts2-core","purl":"pkg:maven/org.apache.struts/struts2-core","ranges":[">=2.5.0 <2.5.13"],"fixed":["2.5.13"]}]}],"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."]}