CVE-2026-67311 Budibase before 3.38.1 SSRF Blacklist Bypass via HTTP Redirect
Attackers with Builder role can bypass SSRF protections via HTTP redirects to access internal services and cloud metadata.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-67311?
CVE-2026-67311 is a high-severity server-side request forgery vulnerability in budibase, published on 1 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
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.
Weakness: CWE-918
Which versions are affected by CVE-2026-67311?
How do I fix CVE-2026-67311?
No fix has been published for CVE-2026-67311 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-67311 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-67311 exists.
Sources
Also known as GHSA-86f3-cqpq-wp9m, GHSA-9v65-w6j3-v2w8.