Regular expression denial of service in jquery-validation
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
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | jquery-validation | < 1.19.4 | 1.19.4 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-43306
- https://github.com/jquery-validation/jquery-validation/pull/2428
- https://github.com/jquery-validation/jquery-validation/commit/69cb17ed774b427f7e2ffcdf197968231725c30e
- https://github.com/jquery-validation/jquery-validation
- https://research.jfrog.com/vulnerabilities/jquery-validation-redos-xray-211348
- Weakness (CWE)
CWE-1333- Platform
- npm
- Package
jquery-validation- Disclosed
- 03.06.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-j9m2-h2pv-wvph - CC BY 4.0
Vulnerability history: jquery-validation
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 01.2021 04.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 1
- Low 1
Disclosures per year
- 2021: 1
- 2022: 2
- 2023: 0
- 2024: 0
- 2025: 1
- 2026: 0
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Regular expression denial of service in jquery-validation this entry
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