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GHSA-jxwx-85vp-gvwm

HIGH

GHSA-jxwx-85vp-gvwm is a high-severity (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in jquery-validation. O3 Security confirms whether GHSA-jxwx-85vp-gvwm is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Regular Expression Denial of Service in jquery-validation

Also known asCVE-2021-21252
Published
Jan 13, 2021
Updated
Jul 8, 2026
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed

Blast Radius

2 pkgs affected

Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.

jquery-validationnpm
231Kdownloads / week

Description

The GitHub Security Lab team has identified potential security vulnerabilities in jquery.validation.

The project contains one or more regular expressions that are vulnerable to ReDoS (Regular Expression Denial of Service)

This issue was discovered and reported by GitHub team member @erik-krogh (Erik Krogh Kristensen).

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
📦npmjquery-validationall versions1.19.3
.NETNuGetjQuery.Validationall versions1.19.3

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for jquery-validation. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update jquery-validation to 1.19.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-jxwx-85vp-gvwm is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-jxwx-85vp-gvwm is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-jxwx-85vp-gvwm. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

The GitHub Security Lab team has identified potential security vulnerabilities in jquery.validation. The project contains one or more regular expressions that are vulnerable to ReDoS (Regular Expression Denial of Service) This issue was discovered and reported by GitHub team member @erik-krogh (Erik Krogh Kristensen).
O3 Security · Impact-Aware SCA

Is GHSA-jxwx-85vp-gvwm in your dependencies?

O3 detects GHSA-jxwx-85vp-gvwm across npm, NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.