CVE-2026-106560
High
Description
Backstage is an open framework for building developer portals. Prior to 0.3.25, the @backstage/plugin-scaffolder-backend-module-confluence-to-markdown package is affected by improper repository path validation in a scaffolder backend module. An authenticated user who can execute an affected template and control its repository file location may cause generated content to be written outside the task workspace, within locations writable by the Backstage backend process. This issue is fixed in version 0.3.25.
SeverityHigh
CVSS7.1
Exploit probability—
Product
Linuxfoundation Backstage
PublishedOct 7, 2026
First seenOct 7, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- linuxfoundation backstage1.54.6 or later
- linuxfoundation backstage\/plugin-scaffolder-backend-module-confluence-to-markdown0.3.25 or later
- @backstage/plugin-scaffolder-backend-module-confluence-to-markdown0.3.25 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linuxfoundation backstage | v < 1.54.6 | 1.54.6 |
| linuxfoundation backstage\/plugin-scaffolder-backend-module-confluence-to-markdown | v < 0.3.25 | 0.3.25 |
| @backstage/plugin-scaffolder-backend-module-confluence-to-markdownnpm | v < 0.3.25 | 0.3.25 |
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