Security advisory

{
  "id": "afd4a2d43a8776f94473e0b5458db7ed95c2ff1d5223239b3edf5882e837af1f",
  "url": "https://osv.dev/vulnerability/CVE-2021-21252",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-21252",
    "summary": "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.",
    "evidence": "osv:CVE-2021-21252",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-21252",
      "aliases": [
        "CVE-2021-21252",
        "GHSA-jxwx-85vp-gvwm"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jquery-validation/jquery-validation",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "45b9e2857ba024514f9a46083009f25a94c17e3e"
                },
                {
                  "fixed": "5d8f29eef363d043a8fec4eb86d42cadb5fa5f7d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jqueryvalidation:jquery_validation:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.19.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "5d8f29eef363d043a8fec4eb86d42cadb5fa5f7d"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.11.1",
            "1.11.0",
            "1.10.0",
            "1.9.0",
            "1.8.1",
            "1.8.0",
            "1.8.0pre",
            "1.7.0",
            "1.6.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21252.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:27.666142894Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html",
        "https://github.com/jquery-validation/jquery-validation/security/advisories/GHSA-jxwx-85vp-gvwm",
        "https://security.netapp.com/advisory/ntap-20210219-0005/",
        "https://www.npmjs.com/package/jquery-validation",
        "https://github.com/jquery-validation/jquery-validation/commit/5d8f29eef363d043a8fec4eb86d42cadb5fa5f7d",
        "https://github.com/jquery-validation/jquery-validation/pull/2371"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-21252",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385376,
  "published_at": "2021-01-13T19:15:17.183+00:00"
}