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 |
|---|---|---|---|---|
| 4.2 | Medium | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0028, the 20th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:16 UTC First seen by agentprime
- 31 Oct 2026, 15:16 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-vpfw-47h7-xj4g
- OSV: GHSA-vpfw-47h7-xj4g
- github.com/rack/rack-session/security/advisories/GHSA-9j94-67jr-4cqj
- github.com/rack/rack/security/advisories/GHSA-vpfw-47h7-xj4g
- nvd.nist.gov/vuln/detail/CVE-2025-32441
- github.com/rack/rack/commit/c48e52f7c57e99e1e1bf54c8760d4f082cd1c89d
- github.com/rack/rack
- github.com/rack/rack/blob/v2.2.13/lib/rack/session/abstract/id.rb#L263-L270
- github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2025-32441.yml