css-what (npm) has 2 known vulnerabilities, the worst rated HIGH. Upgrade to 5.0.1 or later to clear all of them. No malicious-package signal is recorded.
0 direct dependencies
none carry a known advisory
Tracked for PyPI packages. HuggingFace models declare Python dependencies, so npm packages are not covered.
CVSS v3.1 base score out of 10
chance of exploitation in 30 days, 80th percentile of all CVEs
CyberXYZ composite out of 10
fig. 01 — GHSA-p28h-cc7q-c4fg, the advisory selected below
The package css-what before 2.1.3 is vulnerable to Regular Expression Denial of Service (ReDoS) due to the use of insecure regular expression in the reattr…
Full advisory text at GitHub advisory or NVD.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CyberXYZ does not call a package safe in absolute terms. It records 2 known vulnerabilities for css-what (npm), the worst rated HIGH, and no malicious-package signal. Whether it is acceptable depends on the version you run.
Yes. CyberXYZ records 2 known vulnerabilities for css-what (npm), the worst rated HIGH. They are GHSA-p28h-cc7q-c4fg, GHSA-q8pj-2vqx-8ggc.
5.0.1 or later clears every advisory recorded for css-what (npm). Check the release you pick before installing it.
Search css-what in CyberXYZ Check at https://cyberxyz.io/check?q=css-what. The xyz Scanner checks a project's dependencies, and CyberXYZ Proxy checks each package as it is installed.
Checked 2026-11-14 at 07:04 UTC. The most recent advisory here was published 2022-10-01. Updated continuously from NVD, GHSA, OSV and CNA feeds.