7.7
High
CVE-2026-106509 Backstage is an open framework for building developer portals
Description
Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by improper validation of mkdocs theme configuration in techdocs. When TechDocs is configured to build documentation locally or in a container, a user with write access to a registered repository can include configuration values in mkdocs.yml that cause arbitrary code execution during the documentation build process. This issue is fixed in versions 1.14.6 and 1.15.4.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| backstage 1.51 | 1.51.0-next.0 → < 1.54.6 | 1.54.6 |
| backstage 1.50 | earliest → < 1.50.5 | 1.50.5 |
| plugin-techdocs-node 1.15 | 1.15.0 → < 1.15.4 | 1.15.4 |
| plugin-techdocs-node 1.14 | earliest → < 1.14.6 | 1.14.6 |
References
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
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