CVE-2026-35216 Budibase: Unauthenticated Remote Code Execution via Webhook Trigger and Bash Automation Step

Critical 9.1 Published 3 Apr 2026 Updated 3 Apr 2026

Unauthenticated attackers can execute arbitrary commands as root via a public webhook triggering a Bash automation step in Budibase.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2026-35216?

CVE-2026-35216 is a critical command injection vulnerability in budibase, published on 3 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Budibase is an open-source low-code platform. Prior to version 3.33.4, an unauthenticated attacker can achieve Remote Code Execution (RCE) on the Budibase server by triggering an automation that contains a Bash step via the public webhook endpoint. No authentication is required to trigger the exploit. The process executes as root inside the container. This issue has been patched in version 3.33.4.

Weakness: CWE-78

Which versions are affected by CVE-2026-35216?

2 open source packages ship an affected version, including @budibase/server. It affects 1 product.

Package	Affected	Fixed in
`@budibase/server` npm	All versions	`3.33.4`
`@budibase/server` npm	All versions	`3.33.4`

Products include Budibase Budibase.

How do I fix CVE-2026-35216?

Upgrade @budibase/server to 3.33.4 or later.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-35216 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35216 exists.

Sources

Also known as GHSA-fcm4-4pj2-m5hf.