Vulnerability · Published Aug 1, 2026 · Assigned by VulnCheck

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

Medium 6.8

In plain English

A medium-severity server-side request forgery in budibase from Budibase. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).

Severity (CVSS 3.1)6.8Medium

Exploit odds (30 days)0.4%top 63.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Budibase	budibase	0 – before 3.38.1

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

References

GitHub Security Advisory (GHSA-86f3-cqpq-wp9m) vendor-advisory
VulnCheck Advisory: Budibase before 3.38.1 SSRF Blacklist Bypass via HTTP Redirect third-party-advisory