CVE-2026-31818

9.6 CRITICAL
Published: April 03, 2026 Modified: April 08, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/Budibase/budibase/pull/18236
Source: security-advisories@github.com
Issue Tracking Patch
https://github.com/Budibase/budibase/releases/tag/3.33.4
Source: security-advisories@github.com
Product Release Notes
https://github.com/Budibase/budibase/security/advisories/GHSA-7r9j-r86q-7g45
Source: security-advisories@github.com
Exploit Mitigation Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.6 / 10.0
EPSS (Exploit Probability)
0.0%
2th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

budibase