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:N/I:L/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0040, the 34th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
- GitHub Advisory Database: GHSA-xm43-3m56-w3wf
- OSV: GHSA-xm43-3m56-w3wf
- github.com/TryGhost/Ghost/security/advisories/GHSA-xm43-3m56-w3wf
- nvd.nist.gov/vuln/detail/CVE-2026-59817
- github.com/TryGhost/Ghost/pull/28351
- github.com/TryGhost/Ghost/pull/28352
- github.com/TryGhost/Ghost/commit/cab716cd015ac04b7ee50c7a405478d97bc7b1e0
- github.com/TryGhost/Ghost/commit/ee7b991b466a7849c70f9d1caed8e491ee4113c6
- github.com/TryGhost/Ghost