CVE-2026-106510
High
Description
Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by remote code execution via crafted markdown_extensions in techdocs mkdocs.yml. An authenticated user who can register catalog entities can provide a crafted mkdocs.yml causing arbitrary OS command execution on the TechDocs build host when the docs are built. This issue is fixed in versions 1.14.6 and 1.15.4.
SeverityHigh
CVSS7.7
Exploit probability—
Product
Linuxfoundation Backstage Plugin-techdocs-node
PublishedOct 7, 2026
First seenOct 7, 2026
Weakness typeCWE-183CWE-183CWE-470CWE-470
How to fix
Update
- linuxfoundation backstage_plugin-techdocs-node1.14.6, 1.15.4 or later
- linuxfoundation backstage1.50.5, 1.54.6 or later
- @backstage/plugin-techdocs-node1.15.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linuxfoundation backstage_plugin-techdocs-node | v < 1.14.6, 1.15.0 ≤ v < 1.15.4 | 1.14.6, 1.15.4 |
| linuxfoundation backstage | v < 1.50.5, 1.51.1 ≤ v < 1.54.6, 1.51.0 | 1.50.5, 1.54.6 |
| @backstage/plugin-techdocs-nodenpm | v < 1.15.4 | 1.15.4 |
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