CVE-2026-106462
Medium
Description
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.
SeverityMedium
CVSS6.4
Exploit probability—
Product
Linuxfoundation Backstage
PublishedOct 6, 2026
First seenOct 6, 2026
Weakness typeCWE-441CWE-441CWE-863Incorrect authorization
How to fix
Update
- linuxfoundation backstage1.54.6 or later
- linuxfoundation backstage\/plugin-scaffolder-backend0.11.10 or later
- linuxfoundation backstage\/plugin-scaffolder-backend-module-azure0.2.25 or later
- linuxfoundation backstage\/plugin-scaffolder-backend-module-bitbucket-cloud0.3.10 or later
- linuxfoundation backstage\/plugin-scaffolder-backend-module-bitbucket-server0.2.25 or later
- linuxfoundation backstage\/plugin-scaffolder-backend-module-github0.9.13 or later
- linuxfoundation backstage\/plugin-scaffolder-backend-module-gitlab0.11.10 or later
- @backstage/plugin-scaffolder-backend4.1.0 or later
- @backstage/plugin-scaffolder-backend-module-github0.9.13 or later
- @backstage/plugin-scaffolder-backend-module-gitlab0.11.10 or later
- @backstage/plugin-scaffolder-backend-module-azure0.2.25 or later
- @backstage/plugin-scaffolder-backend-module-bitbucket-cloud0.3.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linuxfoundation backstage | v < 1.54.6 | 1.54.6 |
| linuxfoundation backstage\/plugin-scaffolder-backend | v < 0.11.10 | 0.11.10 |
| linuxfoundation backstage\/plugin-scaffolder-backend-module-azure | v < 0.2.25 | 0.2.25 |
| linuxfoundation backstage\/plugin-scaffolder-backend-module-bitbucket-cloud | v < 0.3.10 | 0.3.10 |
| linuxfoundation backstage\/plugin-scaffolder-backend-module-bitbucket-server | v < 0.2.25 | 0.2.25 |
| linuxfoundation backstage\/plugin-scaffolder-backend-module-github | v < 0.9.13 | 0.9.13 |
| linuxfoundation backstage\/plugin-scaffolder-backend-module-gitlab | v < 0.11.10 | 0.11.10 |
| @backstage/plugin-scaffolder-backendnpm | v < 4.1.0 | 4.1.0 |
| @backstage/plugin-scaffolder-backend-module-githubnpm | v < 0.9.13 | 0.9.13 |
| @backstage/plugin-scaffolder-backend-module-gitlabnpm | v < 0.11.10 | 0.11.10 |
| @backstage/plugin-scaffolder-backend-module-azurenpm | v < 0.2.25 | 0.2.25 |
| @backstage/plugin-scaffolder-backend-module-bitbucket-cloudnpm | v < 0.3.10 | 0.3.10 |
| @backstage/plugin-scaffolder-backend-module-bitbucket-servernpm | v < 0.2.25 | 0.2.25 |
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