---
id: CVE-2026-100686
title: >-
  Budibase versions before 3.45.0 fail to validate per-app authorization in the
  POST /api/global/groups/:groupId/apps endpoint, allowing builders to assign
  application roles across workspace boundaries
summary: >-
  Budibase versions before 3.45.0 fail to validate per-app authorization in the
  POST /api/global/groups/:groupId/apps endpoint, allowing builders to assign
  application roles across workspace boundaries. A builder of a single workspace
  can …
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-269
vendor: budibase
product: server
affected:
  - server < 3.45.0
published: '2026-09-26'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T16:16:59.130'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100686'
references:
  - url: >-
      https://github.com/Budibase/budibase/security/advisories/GHSA-pp5r-q4fp-mcj3
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/budibase-before-3.45.0-cross-workspace-privilege-escalation-via-post-api-global-groups-groupid-apps
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/Budibase/budibase/security/advisories/GHSA-pp5r-q4fp-mcj3
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-30T15:02:51.742533Z'
epss: 0.00264
epssPercentile: 0.18122
ingestedAt: '2026-09-26T13:33:20.908Z'
---

## Overview

Budibase versions before 3.45.0 fail to validate per-app authorization in the POST /api/global/groups/:groupId/apps endpoint, allowing builders to assign application roles across workspace boundaries. A builder of a single workspace can exploit missing per-app authorization checks to grant themselves admin roles in other workspaces by modifying user group role mappings.

## Remediation

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