{"id":"UBUNTU-CVE-2021-43306","details":"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","modified":"2026-05-08T12:27:27.992489Z","published":"2022-06-02T14:15:00Z","upstream":["CVE-2021-43306"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-43306"},{"type":"REPORT","url":"https://research.jfrog.com/vulnerabilities/jquery-validation-redos-xray-211348/"},{"type":"REPORT","url":"https://github.com/jquery-validation/jquery-validation/commit/69cb17ed774b427f7e2ffcdf197968231725c30e"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-43306"}],"affected":[{"package":{"name":"civicrm","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/civicrm@4.7.1+dfsg-2ubuntu1+esm1?arch=source&distro=esm-apps/xenial"},"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"],"ecosystem_specific":{"binaries":[{"binary_name":"civicrm-common","binary_version":"4.7.1+dfsg-2ubuntu1+esm1"},{"binary_name":"civicrm-l10n","binary_version":"4.7.1+dfsg-2ubuntu1+esm1"},{"binary_name":"drupal7-mod-civicrm","binary_version":"4.7.1+dfsg-2ubuntu1+esm1"},{"binary_name":"wordpress-civicrm","binary_version":"4.7.1+dfsg-2ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43306.json"}},{"package":{"name":"civicrm","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/civicrm@4.7.30+dfsg-1ubuntu1+esm1?arch=source&distro=esm-apps/bionic"},"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"],"ecosystem_specific":{"binaries":[{"binary_name":"civicrm-common","binary_version":"4.7.30+dfsg-1ubuntu1+esm1"},{"binary_name":"civicrm-l10n","binary_version":"4.7.30+dfsg-1ubuntu1+esm1"},{"binary_name":"wordpress-civicrm","binary_version":"4.7.30+dfsg-1ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43306.json"}},{"package":{"name":"civicrm","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/civicrm@5.21.2+dfsg-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"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"],"ecosystem_specific":{"binaries":[{"binary_version":"5.21.2+dfsg-1ubuntu0.1~esm1","binary_name":"civicrm-common"},{"binary_name":"civicrm-l10n","binary_version":"5.21.2+dfsg-1ubuntu0.1~esm1"},{"binary_name":"wordpress-civicrm","binary_version":"5.21.2+dfsg-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43306.json"}},{"package":{"name":"civicrm","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/civicrm@5.33.2+dfsg1-1ubuntu1+esm1?arch=source&distro=esm-apps/jammy"},"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"],"ecosystem_specific":{"binaries":[{"binary_name":"civicrm-common","binary_version":"5.33.2+dfsg1-1ubuntu1+esm1"},{"binary_version":"5.33.2+dfsg1-1ubuntu1+esm1","binary_name":"civicrm-l10n"},{"binary_version":"5.33.2+dfsg1-1ubuntu1+esm1","binary_name":"wordpress-civicrm"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43306.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}