{"id":"CVE-2021-3794","aliases":["GHSA-vvf2-ppj9-pp49"],"url":"https://o3.security/vulnerability/CVE-2021-3794","summary":"Inefficient Regular Expression Complexity in vuelidate","details":"vuelidate is a simple, lightweight model-based validation for Vue.js 2.x & 3.0. A ReDoS (regular expression denial of service) flaw was found in the `@vuelidate/validators` package. An attacker that is able to provide crafted input to the url(input) function may cause an application to consume an excessive amount of CPU.","published":"2021-09-15T13:15:08.167Z","modified":"2026-07-08T06:03:32.107542295Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"npm","name":"@vuelidate/validators","fixedVersion":"2.0.0-alpha.22"}],"fix":{"url":"https://github.com/vuelidate/vuelidate/commit/1f0ca31c30e5032f00dbd14c4791b5ee7928f71d","label":"vuelidate/vuelidate@1f0ca31"},"references":[{"type":"FIX","url":"https://github.com/vuelidate/vuelidate/commit/1f0ca31c30e5032f00dbd14c4791b5ee7928f71d"},{"type":"FIX","url":"https://huntr.dev/bounties/d8201b98-fb91-4c12-a6f7-181b4a20d9b7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3794"},{"type":"PACKAGE","url":"https://github.com/vuelidate/vuelidate"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T06:03:32.107542295Z"}}