Description
Budibase is an open-source low-code platform. Prior to version 3.33.4, a server-side request forgery (SSRF) vulnerability exists in Budibase's REST datasource connector. The platform's SSRF protection mechanism (IP blacklist) is rendered completely ineffective because the BLACKLIST_IPS environment variable is not set by default in any of the official deployment configurations. When this variable is empty, the blacklist function unconditionally returns false, allowing all requests through without restriction. This issue has been patched in version 3.33.4.
Affected products
budibase: budibase
References4
- github.com/Budibase/budibase/security/advisories/GHSA-7r9j-r86q… ExploitMitigationVendor Advisory
- github.com/Budibase/budibase/commit/5b0fe83d4ece52696b62589cba8… Patch
- github.com/Budibase/budibase/pull/18236 Issue TrackingPatch
- github.com/Budibase/budibase/releases/tag/3.33.4 ProductRelease Notes
Metrics
- CVSS 3.1
-
9.9
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L - EPSS — exploit probability
- 0% percentile: 33 · as of 12 November 2026
- CWE
- CWE-918CWE-1188
Could this be exploited in your environment?
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