{"schema_version":"1.9.0","id":"GHSA-pw54-mh39-w3hc","published":"2021-05-10T19:08:15Z","modified":"2026-07-08T06:49:44.248240618Z","aliases":["CVE-2020-7754","GHSA-xgh6-85xh-479p"],"summary":"Regular expression denial of service in npm-user-validate","details":"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.","affected":[{"package":{"name":"npm-user-validate","ecosystem":"npm","purl":"pkg:npm/npm-user-validate"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.0.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/05/GHSA-pw54-mh39-w3hc/GHSA-pw54-mh39-w3hc.json"}}],"references":[{"type":"WEB","url":"https://github.com/npm/npm-user-validate/security/advisories/GHSA-xgh6-85xh-479p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7754"},{"type":"WEB","url":"https://github.com/npm/npm-user-validate/commit/c8a87dac1a4cc6988b5418f30411a8669bef204e"},{"type":"WEB","url":"https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1019353"},{"type":"WEB","url":"https://snyk.io/vuln/SNYK-JS-NPMUSERVALIDATE-1019352"}],"database_specific":{"cwe_ids":["CWE-400"],"github_reviewed":true,"github_reviewed_at":"2021-04-20T17:21:44Z","nvd_published_at":"2020-10-27T15:15:00Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}