npm vulnerability intelligence

loader-utils NPM Package
Vulnerability Check

utils for webpack loaders

Critical MIT v3.3.1
Vulnerability Analysis OSV Live

loader-utils

v3.3.1 · MIT · 48,600,475 dl/wk

Advisory Breakdown

Critical 1
High 2
Moderate 0
Low 0

Severity Rating

Critical

3 advisories

Critical

Weekly downloads

48,600,475

Total advisories

3

Latest version

3.3.1

License

MIT

Advisories Package Info Runtime

Known advisories

OSV records for the npm ecosystem

3
GHSA-3rfm-jhwj-7488 CVE-2022-37603 high

loader-utils is vulnerable to Regular Expression Denial of Service (ReDoS) via url variable

Affected: >=1.0.0 <1.4.2, >=2.0.0 <2.0.4, >=3.0.0 <3.2.1 Fixed in: 1.4.2, 2.0.4, 3.2.1 Updated Nov 8, 2023
View source
GHSA-76p3-8jx3-jpfq CVE-2022-37601 critical

Prototype pollution in webpack loader-utils

Affected: >=2.0.0 <2.0.3, >=0 <1.4.1 Fixed in: 2.0.3, 1.4.1 Updated Feb 4, 2026
View source
GHSA-hhq3-ff78-jv3g CVE-2022-37599 high

loader-utils is vulnerable to Regular Expression Denial of Service (ReDoS)

Affected: >=1.0.0 <1.4.2, >=2.0.0 <2.0.4, >=3.0.0 <3.2.1 Fixed in: 1.4.2, 2.0.4, 3.2.1 Updated Nov 4, 2025
View source

Checked Jun 15, 2026, 11:28 AM from npm and OSV.dev

Package metadata

From the npm registry

Package name
loader-utils
Ecosystem
npm
Latest version
3.3.1
License
MIT
Weekly downloads
48,600,475
Repository
Open repository

Remediation boundary

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Data from npm registry and OSV.dev · Checked 6/15/2026, 11:28:16 AM