CVE-2026-29186

Backstage is an open framework for building developer portals. Prior to version 1.14.3, this is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the...

CVE-2026-29186

Backstage is an open framework for building developer portals. Prior to version 1.14.3, this is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the...

CVE-2026-29186 @backstage/plugin-techdocs-node: TechDocs Mkdocs Configuration Key Enables Arbitrary Code Execution

Backstage is an open framework for building developer portals. Prior to version 1.14.3, this is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the...

TechDocs Mkdocs Configuration Key Enables Arbitrary Code Execution

Impact This is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the documentation build process. A gap in this allowlist allows attackers to craft an...

GHSA-928R-FM4V-MVRW TechDocs Mkdocs Configuration Key Enables Arbitrary Code Execution

Impact This is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the documentation build process. A gap in this allowlist allows attackers to craft an...

Permissive List of Allowed Inputs

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 Permissive List of Allowed Inputs via the processing of the mkdocs.yml configuration file...

Remote Code Execution (RCE)

@backstage/plugin-techdocs-node is vulnerable to Remote Code Execution RCE. The vulnerability is due to improper sanitization of user-controlled mkdocs.yml configuration specifically MkDocs hooks when TechDocs is configured with runIn: local, which allows an attacker to execute arbitrary Python...

EUVD-2026-5004

Backstage is an open framework for building developer portals, and @backstage/plugin-techdocs-node provides common node.js functionalities for TechDocs. In versions of @backstage/plugin-techdocs-node prior to 1.13.11 and 1.14.1, when TechDocs is configured with runIn: local, a malicious actor who...

PT-2026-5463

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 1.13.11 and versions prior to 1.14.1 Description Backstage’s @backstage/plugin-techdocs-node component, used for TechDocs, is susceptible to remote code execution. When TechDocs is configured to run locally runIn:...