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 |
|---|---|---|---|---|
| 9.1 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0067, the 52nd percentile, on 6 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-639h-86hw-qcjq
- OSV: GHSA-639h-86hw-qcjq
- github.com/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
- nvd.nist.gov/vuln/detail/CVE-2023-36465
- github.com/decidim/decidim
- github.com/decidim/decidim/releases/tag/v0.26.8
- github.com/decidim/decidim/releases/tag/v0.27.4
- github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim-templates/CVE-2023-36465.yml
- github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim/CVE-2023-36465.yml