npm vulnerability intelligence

css-what NPM Package
Vulnerability Check

a CSS selector parser

High severity BSD-2-Clause v8.0.0
Vulnerability Analysis OSV Live

css-what

v8.0.0 · BSD-2-Clause · 76,446,356 dl/wk

Advisory Breakdown

Critical 0
High 2
Moderate 0
Low 0

Severity Rating

High severity

2 advisories

High severity

Weekly downloads

76,446,356

Total advisories

2

Latest version

8.0.0

License

BSD-2-Clause

Advisories Package Info Runtime

Known advisories

OSV records for the npm ecosystem

2
GHSA-p28h-cc7q-c4fg CVE-2022-21222 high

css-what vulnerable to ReDoS due to use of insecure regular expression

Affected: >=0 <2.1.3 Fixed in: 2.1.3 Updated May 20, 2025
View source
GHSA-q8pj-2vqx-8ggc CVE-2021-33587 high

Denial of service in css-what

Affected: >=4.0.0 <5.0.1 Fixed in: 5.0.1 Updated Nov 8, 2023
View source

Checked Jun 27, 2026, 2:39 PM from npm and OSV.dev

Package metadata

From the npm registry

Package name
css-what
Ecosystem
npm
Latest version
8.0.0
License
BSD-2-Clause
Weekly downloads
76,446,356
Repository
Open repository

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Data from npm registry and OSV.dev · Checked 6/27/2026, 2:39:34 PM