What’s Vulnerable › Vulnerabilities

CVE-2026-67311: Budibase before 3.38.1 SSRF Blacklist Bypass via HTTP Redirect

• Severity: medium (CVSS 6.8 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: none known
• Published: 2026-08-01 · updated 2026-08-31
• Weakness: CWE-918

Description

Budibase before 3.38.1 contains a server-side request forgery vulnerability in the REST datasource integration that fails to validate HTTP redirects against the IP blacklist. Attackers with Builder role can configure a REST datasource pointing to an external server that returns a redirect to internal IP addresses, bypassing blacklist protection to access cloud metadata endpoints and internal services.

Affected products

• budibase: before 3.38.1 — fixed in 3.38.1

How to fix

Upgrade to a fixed version: budibase 3.38.1. Check the vendor advisory for mitigations.

References

• https://github.com/Budibase/budibase/security/advisories/GHSA-86f3-cqpq-wp9m
• https://www.vulncheck.com/advisories/budibase-before-ssrf-blacklist-bypass-via-http-redirect
• https://github.com/Budibase/budibase/security/advisories/GHSA-86f3-cqpq-wp9m

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