Privilege Escalation in Budibase Low-Code Platform
CVE-2026-45716

8.8HIGH

Key Information:

Vendor

Budibase

Status
Budibase
Vendor
CVE Published:
27 May 2026

What is CVE-2026-45716?

Inversions in Budibase, an open-source low-code platform, expose a significant security flaw prior to version 3.38.1. The vulnerability resides in the POST /api/global/users/onboard endpoint, which is not adequately protected when certain middleware checks fail. Specifically, if SMTP email settings are not configured (common with self-hosted instances), users with builder permissions can bypass the intended invite flow. This misconfiguration allows them to directly invoke user creation via bulkCreate, manipulating the request to assign arbitrary roles, including the global admin role. As a result, these users may gain full administrative access, which can severely compromise system integrity. This critical issue has been addressed in version 3.38.1.

Affected Version(s)

budibase < 3.38.1

References

https://github.com/Budibase/budibase/security/advisories/...
x_refsource_CONFIRM
https://github.com/Budibase/budibase/releases/tag/3.38.1
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.