Missing Authentication for Critical Function Affecting @budibase/backend-core package, versions <3.35.10


Severity

Recommended
0.0
high
0
10

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  • Snyk IDSNYK-JS-BUDIBASEBACKENDCORE-16115495
  • published21 Apr 2026
  • disclosed16 Apr 2026
  • creditAyushParkara

Introduced: 16 Apr 2026

New CVE NOT AVAILABLE CWE-306  (opens in a new tab)

How to fix?

Upgrade @budibase/backend-core to version 3.35.10 or higher.

Overview

@budibase/backend-core is a Budibase backend core libraries used in server and worker

Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the authenticated middleware, which uses unanchored regular expressions to match public endpoint patterns against the full request URL, including the query string. An attacker can gain unauthorized access to protected endpoints by appending a public endpoint path as a query parameter, thereby bypassing authentication checks and accessing sensitive user and system information.

CVSS Base Scores

version 4.0
version 3.1