---
id: CVE-2026-54356
title: Budibase is an open-source low-code platform
summary: >-
  Budibase is an open-source low-code platform. Prior to 3.41.3, POST
  /api/attachments/:datasourceId/url in packages/server/src/api/routes/static.ts
  and packages/server/src/api/controllers/static/index.ts allows an
  authenticated published-…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L'
cwe:
  - CWE-862
vendor: budibase
product: '@budibase/server'
affected:
  - '@budibase/server <= 3.38.1'
published: '2026-08-17'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T21:03:08.410'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-54356'
references:
  - url: 'https://github.com/Budibase/budibase/releases/tag/3.41.3'
    label: security-advisories@github.com
  - url: >-
      https://github.com/Budibase/budibase/security/advisories/GHSA-6x9p-4r67-5gjx
    label: security-advisories@github.com
  - url: >-
      https://github.com/Budibase/budibase/security/advisories/GHSA-6x9p-4r67-5gjx
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-54356'
  - url: 'https://github.com/advisories/GHSA-6x9p-4r67-5gjx'
tags:
  - nvd
  - exploit-available
  - ghsa
  - npm
epss: 0.00352
epssPercentile: 0.26054
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/KovachVL/CVE-2026-54356'
  checkedAt: '2026-09-25T08:21:02.644Z'
exploitAvailable: true
aliases:
  - GHSA-6x9p-4r67-5gjx
ecosystem: npm
ingestedAt: '2026-08-26T14:45:08.545Z'
---

## Overview

Budibase is an open-source low-code platform. Prior to 3.41.3, POST /api/attachments/:datasourceId/url in packages/server/src/api/routes/static.ts and packages/server/src/api/controllers/static/index.ts allows an authenticated published-app user with the BASIC role to supply attacker-controlled bucket and key values and obtain signedUrl and publicUrl values backed by stored S3 datasource credentials. This issue is fixed in version 3.41.3.

## Remediation

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

## Package advisory (CVE-2026-54356)

Affected packages:

- `@budibase/server <= 3.38.1`

Source: https://github.com/advisories/GHSA-6x9p-4r67-5gjx