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 |
|---|---|---|---|---|
| 5.3 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.025, the 84th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
- GitHub Advisory Database: GHSA-pf8f-w267-mq2h
- OSV: GHSA-pf8f-w267-mq2h
- nvd.nist.gov/vuln/detail/CVE-2019-18978
- github.com/cyu/rack-cors/commit/e4d4fc362a4315808927011cbe5afcfe5486f17d
- github.com/cyu/rack-cors
- github.com/cyu/rack-cors/compare/v1.0.3...v1.0.4
- lists.debian.org/debian-lts-announce/2020/02/msg00004.html
- lists.debian.org/debian-lts-announce/2020/10/msg00000.html
- usn.ubuntu.com/4571-1
- www.debian.org/security/2021/dsa-4918