CVE-2026-31818

CRITICAL EPSS 29.5%
Published Apr 3, 20262mo ago · Modified Jun 17, 20261w ago
9.9 CVSS 3.1
Critical
Find Similar
Published Apr 3, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
9.9
Exploitability
3.1
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability Low

Threat Intelligence

EPSS Exploit Probability
29.5% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-1188
CWE-918 Server-Side Request Forgery (SSRF) Validation

Affected Products 1

VendorProductVersionRange
budibasebudibase* <3.33.4

References 4

  • github.com https://github.com/Budibase/budibase/commit/5b0fe83d4ece52696b62589cba89ef50cc009732
    Patch
  • github.com https://github.com/Budibase/budibase/pull/18236
    Issue TrackingPatch
  • github.com https://github.com/Budibase/budibase/releases/tag/3.33.4
    ProductRelease Notes
  • github.com https://github.com/Budibase/budibase/security/advisories/GHSA-7r9j-r86q-7g45
    ExploitMitigationVendor Advisory

Remediation

  • github.com https://github.com/Budibase/budibase/commit/5b0fe83d4ece52696b62589cba89ef50cc009732
    Patch
  • github.com https://github.com/Budibase/budibase/pull/18236
    Issue TrackingPatch