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 |
|---|---|---|---|---|
| 8.8 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0067, the 51st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:06 UTC First seen by agentprime
- 31 Oct 2026, 14:06 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-h854-c3m3-mh5v
- OSV: GHSA-h854-c3m3-mh5v
- github.com/pimcore/pimcore/security/advisories/GHSA-h854-c3m3-mh5v
- nvd.nist.gov/vuln/detail/CVE-2026-55207
- github.com/pimcore/studio-backend-bundle/pull/1882
- github.com/pimcore/studio-backend-bundle/commit/ea9d329686f5e5aea2eec378d63ac2deb965bb27
- github.com/pimcore/pimcore
- github.com/pimcore/studio-backend-bundle/releases/tag/v2025.4.6
- github.com/pimcore/studio-backend-bundle/releases/tag/v2026.1.6