Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 0.0 | None | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:N | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.014, the 72nd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
- GitHub Advisory Database: GHSA-f4c9-cqv8-9v98
- OSV: GHSA-f4c9-cqv8-9v98
- nvd.nist.gov/vuln/detail/CVE-2021-20066
- github.com/jsdom/jsdom/issues/3124
- github.com/jsdom/jsdom/issues/3124#issuecomment-783502951
- github.com/jsdom/jsdom
- security.snyk.io/vuln/SNYK-JS-JSDOM-1075447
- www.tenable.com/security/research/tra-2021-05