CVE-2026-100688: Budibase Server

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Budibase server before 3.45.0 contains a cross-tenant information disclosure vulnerability in the GET /api/applications/:appId/appPackage endpoint that allows authenticated users to read another tenant's application metadata and source code. Attackers can supply a victim tenant's app id to retrieve sensitive application details including navigation structure, role names, internal screen URLs, JavaScript snippets, and user identifiers without authorization checks.

Affected products

• Budibase Server: before 3.45.0 (fixed in 3.45.0)

Published 2026-09-26. Last modified 2026-10-08.