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 |
|---|---|---|---|---|
| 4.8 | Medium | 4.0 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | CNA (snyk) |
- CISA KEV Not listed.
- EPSS 0.0013, the 2nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
- GitHub Advisory Database: GHSA-vpq2-c234-7xj6
- OSV: GHSA-vpq2-c234-7xj6
- nvd.nist.gov/vuln/detail/CVE-2026-3449
- github.com/TooTallNate/once/issues/8
- github.com/TooTallNate/once/commit/b9f43cc5259bee2952d91ad3cdbd201a82df448a
- github.com/TooTallNate/once
- github.com/TooTallNate/once/releases/tag/v2.0.1
- security.snyk.io/vuln/SNYK-JS-TOOTALLNATEONCE-15250612