TI-2026-24371 Aliases CVE-2026-31818 GHSA-7r9j-r86q-7g45

Budibase: Server-Side Request Forgery via REST Connector with Empty Default Blacklist

HIGH 76CWE-1188Published 2026-04-03 · Updated 2026-04-03

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · Low
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00383 32nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed budibase (Budibase): 3.33.4@budibase/backend-core (npm): 3.33.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Budibase	budibase	before 3.33.4	3.33.4	Patch available	CNA
—	@budibase/backend-core (npm)	before 3.33.4	3.33.4	Patch available	GHSA-7r9j-r86q-7g45

budibase VendorBudibase Affected before 3.33.4 Fixed in 3.33.4 Patch available CNA
@budibase/backend-core (npm) Vendor— Affected before 3.33.4 Fixed in 3.33.4 Patch available GHSA-7r9j-r86q-7g45

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:budibase:budibase::::::::	before 3.33.4	Vulnerable	Budibase

cpe:2.3:a:budibase:budibase:*:*:*:*:*:*:*:* Versions before 3.33.4 Vulnerable ·Budibase

Remediation

Fix · CNA budibase (Budibase) Fixed in 3.33.4
Fix · GHSA-7r9j-r86q-7g45 @budibase/backend-core (npm) Fixed in 3.33.4 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-31818
2026-10-03 Alias added: GHSA-7r9j-r86q-7g45

References

Exploit 1

https://github.com/Budibase/budibase/security/advisories/GHSA-7r9j-r86q-7g45

Patch 2

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-31818

Other 2

TI-2026-39242 Budibase: Anonymous NoSQL operator injection via published-app query templates CVSS 3.1CRITICAL 10.0
TI-2026-24369 Budibase Universal Auth Bypass via Webhook Query Param Injection CVSS 3.1CRITICAL 9.1
TI-2026-39244 Budibase: Arbitrary file read by workspace-builder via PWA-zip symlink upload CVSS 3.1CRITICAL 9.6
TI-2026-39243 Budibase: Mass Assignment in Webhook Trigger Allows Cross-Workspace Automation Execution via appId Override CVSS 3.1CRITICAL 9.6
TI-2026-23473 Budibase PWA ZIP Upload Path Traversal Allows Reading Arbitrary Server Files Including All Environment Secrets CVSS 3.1CRITICAL 9.6
TI-2026-22078 Budibase Vulnerable to Remote Code Execution via Unsafe eval() in View Filter Map Function (Budibase Cloud) CVSS 3.1CRITICAL 9.9

See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences