EUVD-2026-32590CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L
Lifecycle Timeline
2DescriptionNVD
Budibase is an open-source low-code platform. Prior to 3.39.0, /api/public/v1/roles/assign is guarded by the builderOrAdmin middleware, which passes any user who is a builder for the app id in the x-budibase-app-id header. That check admits both global builders and workspace-scoped builders (builder.apps set but builder.global unset). The controller then spreads the request body into the SDK call, and the SDK grants builder.global=true or admin.global=true on whichever user ids the caller supplies. Bob, a workspace-scoped builder with an API key, promotes himself or any other user to global admin with one POST. The whole flow is tenant-wide privilege escalation from an app-level role, available to anyone with an Enterprise license that unlocks the EXPANDED_PUBLIC_API feature. This vulnerability is fixed in 3.39.0.
AnalysisAI
Privilege escalation in Budibase before 3.39.0 lets a workspace-scoped builder promote themselves or any other user to global administrator with a single POST to /api/public/v1/roles/assign. The builderOrAdmin middleware admits app-level builders (builder.apps set, builder.global unset) and the controller blindly spreads the request body into the SDK, allowing the caller to set builder.global=true or admin.global=true on arbitrary user IDs. …
Sign in for full analysis, threat intelligence, and remediation guidance.
RemediationAI
Within 24 hours: Inventory all Budibase deployments and document current versions; restrict network access to /api/public/v1/roles/assign endpoints where feasible. Within 7 days: Upgrade all Budibase instances to version 3.39.0 or later. …
Sign in for detailed remediation steps.
Share
External POC / Exploit Code
Leaving vuln.today