{"cve":"CVE-2021-21252","nvd":{"published":"2021-01-13T19:15:17.183","modified":"2026-06-17T03:35:07.967","status":"Modified","description":"The jQuery Validation Plugin provides drop-in validation for your existing forms. It is published as an npm package \"jquery-validation\". jquery-validation before version 1.19.3 contains one or more regular expressions that are vulnerable to ReDoS (Regular Expression Denial of Service). This is fixed in 1.19.3.","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://github.com/jquery-validation/jquery-validation/commit/5d8f29eef363d043a8fec4eb86d42cadb5fa5f7d","https://github.com/jquery-validation/jquery-validation/pull/2371","https://github.com/jquery-validation/jquery-validation/security/advisories/GHSA-jxwx-85vp-gvwm","https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html","https://security.netapp.com/advisory/ntap-20210219-0005/"],"products":["jqueryvalidation:jquery_validation","netapp:snapcenter"],"source":"nvd","synced_at":"2026-10-19T21:14:10.479542811+00:00"},"epss":{"cve":"CVE-2021-21252","score":0.03575,"percentile":0.8939,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jxwx-85vp-gvwm","url":"https://osv.dev/vulnerability/GHSA-jxwx-85vp-gvwm","summary":"Regular Expression Denial of Service in jquery-validation","modified":"2026-07-08T06:29:20.727643255Z","packages":[{"ecosystem":"npm","name":"jquery-validation","purl":"pkg:npm/jquery-validation","ranges":["<1.19.3"],"fixed":["1.19.3"]},{"ecosystem":"NuGet","name":"jQuery.Validation","purl":"pkg:nuget/jQuery.Validation","ranges":["<1.19.3"],"fixed":["1.19.3"]}]}],"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."]}