CVE-2026-48151: Budibase

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Budibase is an open-source low-code platform. Prior to 3.39.0, the webhook schema-building endpoint is registered under builderRoutes, but the generic authorization middleware skips authorization for all paths matching /api/webhooks/schema. As a result, an unauthenticated caller can update the body schema for a known webhook and mutate the corresponding automation trigger output schema. This vulnerability is fixed in 3.39.0.

Affected products

• Budibase Budibase: before 3.39.0 (fixed in 3.39.0)

Published 2026-05-27. Last modified 2026-06-17.