{"cve":"CVE-2020-7754","nvd":{"published":"2020-10-27T15:15:13.123","modified":"2026-06-17T03:25:23.267","status":"Modified","description":"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.","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":[],"references":["https://github.com/npm/npm-user-validate/commit/c8a87dac1a4cc6988b5418f30411a8669bef204e","https://github.com/npm/npm-user-validate/security/advisories/GHSA-xgh6-85xh-479p","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1019353","https://snyk.io/vuln/SNYK-JS-NPMUSERVALIDATE-1019352","https://github.com/npm/npm-user-validate/commit/c8a87dac1a4cc6988b5418f30411a8669bef204e"],"products":["npmjs:npm-user-validate"],"source":"nvd","synced_at":"2026-10-19T21:09:53.489947993+00:00"},"epss":{"cve":"CVE-2020-7754","score":0.03481,"percentile":0.89111,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-pw54-mh39-w3hc","url":"https://osv.dev/vulnerability/GHSA-pw54-mh39-w3hc","summary":"Regular expression denial of service in npm-user-validate","modified":"2026-07-08T06:49:44.248240618Z","packages":[{"ecosystem":"npm","name":"npm-user-validate","purl":"pkg:npm/npm-user-validate","ranges":["<1.0.1"],"fixed":["1.0.1"]}]},{"id":"GHSA-xgh6-85xh-479p","url":"https://osv.dev/vulnerability/GHSA-xgh6-85xh-479p","summary":"Regular Expression Denial of Service in npm-user-validate","modified":"2026-07-08T06:49:44.248240618Z","packages":[{"ecosystem":"npm","name":"npm-user-validate","purl":"pkg:npm/npm-user-validate","ranges":["<1.0.1"],"fixed":["1.0.1"]}]}],"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."]}