CVE-2026-100686: Budibase before 3.45.0 Cross-Workspace Privilege Escalation via POST /api/global/groups/:groupId/apps
Budibase versions before 3.45.0 fail to validate per-app authorization in the POST /api/global/groups/:groupId/apps endpoint, allowing builders to assign application roles across workspace boundaries. A builder of a single workspace can exploit missing per-app authorization checks to grant themselves admin roles in other workspaces by modifying user group role mappings.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Budibaseto a version that resolves this vulnerability.Fixed in 3.45.0
Event History
Frequently Asked Questions
Who can exploit this issue?
An attacker must already have builder-level access in at least one workspace. They can then abuse the affected endpoint to modify group role mappings for applications in other workspaces.
What access can an attacker gain?
A builder can grant themselves an admin role in another workspace, crossing the intended workspace authorization boundary.
Which deployments are affected?
Budibase versions before 3.45.0 are affected. The issue is exposed through POST /api/global/groups/:groupId/apps because it does not validate authorization for each target application.