{"id":"CVE-2021-43306","aliases":["CLSA-2026-1773101704","EUVD-2022-6077","GHSA-j9m2-h2pv-wvph","UBUNTU-CVE-2021-43306"],"status":"published","title":"Exponential ReDoS in jquery-validation","description":"An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01523,"percentile":0.74959,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1333"],"published":"2022-06-01T16:47:27Z","modified":"2026-10-24T10:30:25Z","fixes":[{"ecosystem":"npm","package":"jquery-validation","fixed_in":["1.19.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"jquery-validation","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.19.4"}]}]},{"source":"osv","ecosystem":"TuxCare:npm","package":"jquery-validation","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.19.0-tuxcare.0"},{"fixed":"1.19.0-tuxcare.1"}]}],"versions":["1.19.0"],"bundled":4},{"source":"osv","ecosystem":"npm","package":"jquery-validation","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.19.4"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"civicrm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.7.1+dfsg-1","4.7.1+dfsg-2","4.7.1+dfsg-2ubuntu1","4.7.1+dfsg-2ubuntu1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"civicrm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.7.23+dfsg-1ubuntu1","4.7.24+dfsg-1ubuntu1","4.7.30+dfsg-1ubuntu1","4.7.30+dfsg-1ubuntu1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"civicrm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.11.0+dfsg-1","5.18.1+dfsg-1","5.20.3+dfsg-1","5.21.0+dfsg-1","5.21.1+dfsg-1","5.21.2+dfsg-1","5.21.2+dfsg-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"civicrm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.33.2+dfsg1-1","5.33.2+dfsg1-1build1","5.33.2+dfsg1-1ubuntu1","5.33.2+dfsg1-1ubuntu1+esm1"]}],"products":[{"vendor":"jquery-validation","product":"jquery-validation"},{"vendor":"jqueryvalidation","product":"jquery_validation"}],"references":[{"url":"https://research.jfrog.com/vulnerabilities/jquery-validation-redos-xray-211348/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43306","tags":["advisory"]},{"url":"https://github.com/jquery-validation/jquery-validation/commit/69cb17ed774b427f7e2ffcdf197968231725c30e","tags":["web","report"]},{"url":"https://github.com/jquery-validation/jquery-validation/pull/2428","tags":["web"]},{"url":"https://research.jfrog.com/vulnerabilities/jquery-validation-redos-xray-211348","tags":["web"]},{"url":"https://github.com/advisories/GHSA-j9m2-h2pv-wvph"},{"url":"https://github.com/jquery-validation/jquery-validation","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2021-43306","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-43306","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-43306","title":"Exponential ReDoS in jquery-validation","description":"An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method","status":"published","published":"2022-06-01T16:47:27.576Z","modified":"2024-09-16T23:56:26.165Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:32:57.033395Z"}],"euvd":[{"id":"EUVD-2022-6077","description":"An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method","status":"published","published":"2022-06-01T16:47:27Z","modified":"2024-09-16T23:56:26Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:29:03.409164Z"}],"ghsa":[{"id":"GHSA-j9m2-h2pv-wvph","title":"Regular expression denial of service in jquery-validation","description":"An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method","status":"published","published":"2022-06-03T00:00:59Z","modified":"2024-11-12T14:55:24Z","cwes":["CWE-1333"],"updated_at":"2026-11-02T14:38:16.477822Z"}],"nvd":[{"id":"CVE-2021-43306","description":"An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method","status":"published","published":"2022-06-02T14:15:30.923Z","modified":"2026-06-17T04:10:49.497Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:07:06.501652Z"}],"osv":[{"id":"CVE-2021-43306","description":"An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method","status":"published","published":"2022-06-02T14:15:30.923Z","modified":"2026-10-24T10:30:25.182086611Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:21.877444Z"},{"id":"UBUNTU-CVE-2021-43306","description":"An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method","status":"published","published":"2022-06-02T14:15:00Z","modified":"2026-05-08T12:27:27.992489Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:29.220315Z"},{"id":"CLSA-2026-1773101704","title":"TuxCare security update for jquery-validation (4 CVEs)","description":"TuxCare rebuilt jquery-validation to address 4 CVEs. Fixed in 1.19.0-tuxcare.1.","status":"published","published":"2026-08-04T14:52:11Z","modified":"2026-10-15T09:47:27.601890925Z","updated_at":"2026-11-02T15:43:43.249928Z"},{"id":"GHSA-j9m2-h2pv-wvph","title":"Regular expression denial of service in jquery-validation","description":"An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method","status":"published","published":"2022-06-03T00:00:59Z","modified":"2024-11-12T14:55:23Z","cwes":["CWE-1333"],"updated_at":"2026-11-02T15:46:50.336262Z"}]}}