CVE-2026-33226: Budibase Unrestricted Server-Side Request Forgery (SSRF) via REST Datasource Query Preview

March 18, 2026 (updated March 25, 2026)

The REST datasource query preview endpoint (POST /api/queries/preview) makes server-side HTTP requests to any URL supplied by the user in fields.path with no validation. An authenticated admin can reach internal services that are not exposed to the internet — including cloud metadata endpoints (AWS/GCP/Azure), internal databases, Kubernetes APIs, and other pods on the internal network. On GCP this leads to OAuth2 token theft with cloud-platform scope (full GCP access). On any deployment it enables full internal network enumeration.

References

Code Behaviors & Features

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