CVE-2026-48151

High

Description

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.

SeverityHigh
CVSS7.5
Exploit probability—
Product@budibase/server
PublishedMay 27, 2026
First seenMay 27, 2026

How to fix

Update
  • @budibase/server3.39.0 or later

Affected products

ProductAffected versionsFixed in
@budibase/servernpmv < 3.39.03.39.0

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