High severity7.5NVD Advisory· Published May 28, 2021· Updated Jun 17, 2026
CVE-2021-33587
CVE-2021-33587
Description
The css-what package 4.0.0 through 5.0.0 for Node.js does not ensure that attribute parsing has Linear Time Complexity relative to the size of the input.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
css-whatnpm | >= 4.0.0, < 5.0.1 | 5.0.1 |
Affected products
5cpe:2.3:a:css-what_project:css-what:4.0.0:*:*:*:*:node.js:*:*+ 1 more
- cpe:2.3:a:css-what_project:css-what:4.0.0:*:*:*:*:node.js:*:*
- cpe:2.3:a:css-what_project:css-what:5.0.0:*:*:*:*:node.js:*:*
- cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:*
- Node.js/css-whatdescription
Patches
Vulnerability mechanics
References
7- github.com/fb55/css-what/releases/tag/v5.0.1nvdPatchRelease NotesThird Party AdvisoryWEB
- github.com/advisories/GHSA-q8pj-2vqx-8ggcghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-33587ghsaADVISORY
- security.netapp.com/advisory/ntap-20210706-0007/nvdThird Party Advisory
- github.com/fb55/css-what/commit/4cdaacfd0d4b6fd00614be030da0dea6c2994655ghsaWEB
- lists.debian.org/debian-lts-announce/2023/03/msg00001.htmlnvdWEB
- security.netapp.com/advisory/ntap-20210706-0007ghsaWEB
News mentions
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