Resource Exhaustion The advisory has been revoked - it doesn't affect any version of package css-what (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-CSSWHAT-9898033
- published29 Apr 2025
- disclosed30 Sept 2022
Introduced: 30 Sep 2022
CVE-2022-21222 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream css-what package and not the css-what package as distributed by RHEL.
The package css-what before 2.1.3 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the usage of insecure regular expression in the re_attr variable of index.js. The exploitation of this vulnerability could be triggered via the parse function.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2131335
- https://access.redhat.com/security/cve/CVE-2022-21222
- https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12
- https://lists.debian.org/debian-lts-announce/2023/03/msg00001.html
- https://security.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488