@backstage/plugin-techdocs-node vulnerable to possible Path Traversal in TechDocs Local Generator
Impact
A path traversal vulnerability in the TechDocs local generator allows attackers to read arbitrary files from the host filesystem when Backstage is configured with techdocs.generator.runIn: local.
When processing documentation from untrusted sources, symlinks within the docs directory are followed by MkDocs during the build process. File contents are embedded into generated HTML and exposed to users who can view the documentation.
Patches
This vulnerability is fixed in @backstage/plugin-techdocs-node version X.X.X. Users should upgrade to this version or later.
Workarounds
- Switch to
runIn: dockerin yourapp-config.yaml:
techdocs:
generator:
runIn: docker- Restrict write access to TechDocs source repositories to trusted users only
References
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @backstage/plugin-techdocs-node | >= 1.14.0, < 1.14.1, < 1.13.11 | 1.14.1, 1.13.11 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-22- Platform
- npm
- Package
@backstage/plugin-techdocs-node- Disclosed
- 02.02.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-w669-jj7h-88m9 - CC BY 4.0
Vulnerability history: @backstage/plugin-techdocs-node
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 11
- First → latest
- 06.2022 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 8
- Medium 3
Disclosures per year
- 2022: 1
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 10
-
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