---
id: CVE-2026-106462
title: Backstage is an open framework for building developer portals
summary: >-
  Backstage is an open framework for building developer portals. Prior to
  1.54.6, scaffolder source-control actions may not consistently enforce
  intended credential boundaries. An authenticated user could cause an affected
  action to fall b…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-441
  - CWE-863
vendor: backstage
product: backstage
affected:
  - backstage < 1.54.6
  - plugin-scaffolder-backend < 4.1.0
  - plugin-scaffolder-backend-module-azure < 0.2.25
  - plugin-scaffolder-backend-module-bitbucket-cloud < 0.3.10
  - plugin-scaffolder-backend-module-bitbucket-server < 0.2.25
  - plugin-scaffolder-backend-module-github < 0.9.13
  - plugin-scaffolder-backend-module-gitlab < 0.11.10
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T21:17:17.020'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-106462'
references:
  - url: >-
      https://github.com/backstage/backstage/commit/6fb2a41ea47da37eafe5ea744050ef90be6820c0
    label: security-advisories@github.com
  - url: 'https://github.com/backstage/backstage/releases/tag/v1.54.6'
    label: security-advisories@github.com
  - url: >-
      https://github.com/backstage/backstage/security/advisories/GHSA-29gx-h2m3-xw44
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T21:20:28.982Z'
---

## Overview

Backstage is an open framework for building developer portals. Prior to 1.54.6, scaffolder source-control actions may not consistently enforce intended credential boundaries. An authenticated user could cause an affected action to fall back to broader integration credentials and perform operations with more access than intended. This issue is fixed in 1.54.6 when operators also enable scaffolder.requireScmUserCredentials after upgrading.

## Remediation

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