Improper Authentication Affecting @budibase/backend-core package, versions <3.39.30


Severity

Recommended
0.0
critical
0
10

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  • Snyk IDSNYK-JS-BUDIBASEBACKENDCORE-18319716
  • published26 Jul 2026
  • disclosed24 Jul 2026
  • creditUnknown

Introduced: 24 Jul 2026

New CVE NOT AVAILABLE CWE-287  (opens in a new tab)

How to fix?

Upgrade @budibase/backend-core to version 3.39.30 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 Improper Authentication in the OIDC SSO authentication process. An attacker can gain unauthorized access to an existing user account, including accounts with administrative privileges, by authenticating through a trusted identity provider that asserts the victim's email address without verifying it. This is only exploitable if the attacker can authenticate through an identity provider trusted by the application and configure it to assert the victim's email with the verification flag set to false.

CVSS Base Scores

version 4.0
version 3.1