---
id: CVE-2026-73306
title: Budibase is an open-source low-code platform
summary: >-
  Budibase is an open-source low-code platform. Prior to 3.39.25, POST
  /api/global/auth/:tenantId/login incremented the failure counter in
  packages/worker/src/api/controllers/global/auth.ts only for existing users,
  while packages/worker/sr…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-204
published: '2026-08-12'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:56:50.520'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73306'
references:
  - url: >-
      https://github.com/Budibase/budibase/commit/eaae816ab81615c07eb10e4619af078d00e2a706
    label: security-advisories@github.com
  - url: 'https://github.com/Budibase/budibase/pull/19108'
    label: security-advisories@github.com
  - url: 'https://github.com/Budibase/budibase/releases/tag/3.39.25'
    label: security-advisories@github.com
  - url: >-
      https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm
    label: security-advisories@github.com
  - url: >-
      https://github.com/Budibase/budibase/security/advisories/GHSA-cr7p-cr3q-h5cm
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00416
epssPercentile: 0.35628
ingestedAt: '2026-09-08T21:11:12.276Z'
---

## Overview

Budibase is an open-source low-code platform. Prior to 3.39.25, POST /api/global/auth/:tenantId/login incremented the failure counter in packages/worker/src/api/controllers/global/auth.ts only for existing users, while packages/worker/src/middleware/emailLockout.ts returned X-Account-Locked and Retry-After only for locked identifiers. An unauthenticated attacker could compare the response after repeated failures to enumerate valid email addresses and temporarily lock valid accounts. This issue is fixed in version 3.39.25.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.