{"id":"CVE-2021-23388","aliases":["EUVD-2021-1307","GHSA-c56f-grv3-gpfr","SNYK-JS-FORMS-1296389"],"status":"published","title":"Regular Expression Denial of Service (ReDoS)","description":"The package forms before 1.2.1, from 1.3.0 and before 1.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via email validation.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0165,"percentile":0.76825,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2021-05-31T13:50:11Z","modified":"2026-10-20T10:54:31Z","fixes":[{"ecosystem":"npm","package":"forms","fixed_in":["1.3.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"forms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.2"}]}]},{"source":"osv","ecosystem":"npm","package":"forms","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.3.2"}]}]}],"products":[{"vendor":"forms_project","product":"forms"},{"vendor":"made i.t.","product":"forms"}],"references":[{"url":"https://snyk.io/vuln/SNYK-JS-FORMS-1296389","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/caolan/forms/pull/214","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/caolan/forms/pull/214/commits/d4bd5b5febfe49c1f585f162e04ec810f8dc47a0","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23388","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c56f-grv3-gpfr"}],"sources":{"cve":[{"id":"CVE-2021-23388","title":"Regular Expression Denial of Service (ReDoS)","description":"The package forms before 1.2.1, from 1.3.0 and before 1.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via email validation.","status":"published","published":"2021-05-31T13:50:11.522Z","modified":"2024-09-17T03:47:34.02Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:00.819444Z"}],"euvd":[{"id":"EUVD-2021-1307","description":"The package forms before 1.2.1, from 1.3.0 and before 1.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via email validation.","status":"published","published":"2021-05-31T13:50:11Z","modified":"2024-09-17T03:47:34Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-03T00:28:29.042248Z"}],"ghsa":[{"id":"GHSA-c56f-grv3-gpfr","title":"Regular expression denial of service in forms","description":"The package forms before 1.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via email validation.","status":"published","published":"2021-06-07T22:10:13Z","modified":"2023-02-01T05:05:57Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:36:36.66596Z"}],"nvd":[{"id":"CVE-2021-23388","description":"The package forms before 1.2.1, from 1.3.0 and before 1.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via email validation.","status":"published","published":"2021-06-01T14:15:08.747Z","modified":"2026-06-17T03:38:40.297Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:53.987491Z"}],"osv":[{"id":"CVE-2021-23388","description":"The package forms before 1.2.1, from 1.3.0 and before 1.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via email validation.","status":"published","published":"2021-06-01T14:15:08.747Z","modified":"2026-10-20T10:54:31.958073819Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:18.367807Z"},{"id":"GHSA-c56f-grv3-gpfr","title":"Regular expression denial of service in forms","description":"The package forms before 1.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via email validation.","status":"published","published":"2021-06-07T22:10:13Z","modified":"2026-07-08T06:49:29.628079044Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:44.571161Z"}]}}