css-what (npm)
a CSS selector parser
Advisories
3
Latest version
8.0.0
Released Mar 17, 2026
License
BSD-2-Clause
OpenSSF Scorecard
6.5 / 10
How to fix
Upgrading to 5.0.1 or later clears every advisory below that has a fix.
Upgrade commands
npm
npm install css-what@8.0.0yarn
yarn add css-what@8.0.0pnpm
pnpm add css-what@8.0.0Known vulnerabilities
| Advisory | Severity | Affected | Fixed in |
|---|---|---|---|
| GHSA-p28h-cc7q-c4fg css-what vulnerable to ReDoS due to use of insecure regular expression |
High EPSS 1.90% |
< 2.1.3 | 2.1.3 |
| GHSA-p28h-cc7q-c4fg css-what vulnerable to ReDoS due to use of insecure regular expression |
High EPSS 1.90% |
< 2.1.3 | 2.1.3 |
| GHSA-q8pj-2vqx-8ggc Denial of service in css-what |
High EPSS 2.04% |
>= 4.0.0, < 5.0.1 | 5.0.1 |
Source: git+https://github.com/fb55/css-what.git
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