Pimcore: Insufficient Permission Check on Class Definition Creation Endpoint Allows Privilege Escalation

Date Aug 28, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product Composer ยท pimcore/studio-backend-bundle
CVE CVE-2026-55212
High-risk advisory CVE-2026-55212

Summary

Pimcore: Insufficient Permission Check on Class Definition Creation Endpoint Allows Privilege Escalation

Why it matters

GitHub has published a reviewed security advisory for pimcore/studio-backend-bundle. Prioritize it with other application dependency updates, especially because EPSS places it in the 28% percentile.

Operator check

Check whether pimcore/studio-backend-bundle is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.4%; percentile: 28%.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.