Security advisory

{
  "id": "87fa8b2daccc5801aa3fceadb8ccc419d38ed3159f5e9a83e305db910e1b9142",
  "url": "https://osv.dev/vulnerability/CVE-2020-7754",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-7754",
    "summary": "This affects the package npm-user-validate before 1.0.1. The regex that validates user emails took exponentially longer to process long input strings beginning with @ characters.",
    "evidence": "osv:CVE-2020-7754",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-7754",
      "aliases": [
        "CVE-2020-7754",
        "GHSA-pw54-mh39-w3hc",
        "GHSA-xgh6-85xh-479p"
      ],
      "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/npm/npm-user-validate",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5c5471ceee0d9f5249157f5ae10d65a5b92605c9"
                },
                {
                  "fixed": "c8a87dac1a4cc6988b5418f30411a8669bef204e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:npmjs:npm-user-validate:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.0.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c8a87dac1a4cc6988b5418f30411a8669bef204e"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.0.0",
            "v0.1.5",
            "v0.1.4",
            "v0.1.3",
            "v0.1.2",
            "v0.1.1",
            "v0.1.0",
            "v0.0.4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7754.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:24.550471471Z",
      "provider": "osv",
      "references": [
        "https://github.com/npm/npm-user-validate/security/advisories/GHSA-xgh6-85xh-479p",
        "https://github.com/npm/npm-user-validate/commit/c8a87dac1a4cc6988b5418f30411a8669bef204e",
        "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1019353",
        "https://snyk.io/vuln/SNYK-JS-NPMUSERVALIDATE-1019352"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-7754",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385312,
  "published_at": "2020-10-27T15:15:13.123+00:00"
}