CVE-2021-21252: Jqueryvalidation jQuery Validation

High severity, CVSS 7.5. EPSS: 3.6% chance of exploitation in the next 30 days.

The jQuery Validation Plugin provides drop-in validation for your existing forms. It is published as an npm package "jquery-validation". jquery-validation before version 1.19.3 contains one or more regular expressions that are vulnerable to ReDoS (Regular Expression Denial of Service). This is fixed in 1.19.3.

Affected products

  • Jqueryvalidation jQuery Validation: before 1.19.3 (fixed in 1.19.3)
  • Netapp Snapcenter: affected versions not specified

Published 2021-01-13. Last modified 2026-06-17.