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

Severity: high (CVSS 8.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-03-20 · updated 2026-10-07
Weakness: CWE-918

Description

Budibase is a low code platform for creating internal tools, workflows, and admin panels. In versions from 3.30.6 and prior, 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. At time of publication, there are no publicly available patches.

Affected products

budibase: through 3.30.6

References

https://github.com/Budibase/budibase/security/advisories/GHSA-4647-wpjq-hh7f

Get alerted when CVE-2026-33226 or the next vulnerability affects your stack