Server-side Request Forgery (SSRF) Affecting @backstage/plugin-techdocs-node package, versions >=0.11.12 <1.14.7>=1.15.0 <1.15.5
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published11 Oct 2026
- disclosed7 Oct 2026
- creditUnknown
Introduced: 7 Oct 2026
NewCVE-2026-106455 (opens in a new tab)How to fix?
Upgrade @backstage/plugin-techdocs-node to version 1.14.7, 1.15.5 or higher.
Overview
@backstage/plugin-techdocs-node is a Common node.js functionalities for TechDocs, to be shared between techdocs-backend plugin and techdocs-cli
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via unsanitized MkDocs plugin entries in mkdocs.yml during documentation generation in mkdocsPatchers.ts. Prior to the fix, the TechDocs generation pipeline did not enforce an allowlist of permitted MkDocs plugins, allowing a documentation author to specify arbitrary plugins - including those capable of making outbound HTTP requests or executing arbitrary code - in their mkdocs.yml. An attacker with the ability to author TechDocs content can inject plugins such as privacy or table-reader with attacker-controlled configuration (for example, pointing data_path at internal paths or external hosts), causing the backend to make unintended network requests and exfiltrate sensitive data during the documentation build process.