Budibase: Unauthenticated Remote Code Execution via Webhook Trigger and Bash Automation Step

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Summary

CVECVE-2026-35216
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-03 16:16:41 UTC
Updated2026-04-03 17:16:53 UTC
DescriptionBudibase 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.

Risk And Classification

Primary CVSS: v3.1 9 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Problem Types: CWE-78 | CWE-78 CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9CRITICALCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED9.1CRITICALCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Budibase Budibase affected < 3.33.4 Not specified

References

ReferenceSourceLinkTags
github.com/Budibase/budibase/commit/f0c731b409a96e401445a6a6030d2994ff4a... [email protected] github.com
github.com/Budibase/budibase/pull/18238 [email protected] github.com
github.com/Budibase/budibase/security/advisories/GHSA-fcm4-4pj2-m5hf 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/Budibase/budibase/releases/tag/3.33.4 [email protected] github.com
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