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@budibase/server <=3.39.0 JSON Injection Vulnerability in PUBLIC Queries

A security vulnerability in Budibase server <=3.

24 Jun 2026Read 1 minSeverity: act now

What changed

A security vulnerability in Budibase server <=3.39.0 allows unauthenticated attackers to read or modify all documents in backing databases via JSON injection in PUBLIC queries.

Who it affects

Any Budibase deployment where a workspace builder has set a non-SQL query (MongoDB, CouchDB, Elasticsearch, DynamoDB-PartiQL, or REST with bodyType=json) role to PUBLIC and published the app.

What to do today

Upgrade Budibase server to a patched version immediately; if not available, restrict PUBLIC queries or disable them until a fix is applied.

The trail
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