CVE-2026-106509: Improper Control of Generation of Code

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...

CVE-2026-106505: Untrusted Search Path

Backstage is an open framework for building developer portals. Prior to 1.14.6 and 1.15.4, the @backstage/plugin-techdocs-node package is affected by bypass of mkdocs configuration sanitizer in techdocs backend. Users with the ability to commit changes to a repository that uses TechDocs can...

PT-2026-107310

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 1.14.6 Description The @backstage/plugin-techdocs-node package fails to properly validate the mkdocs theme configuration. When TechDocs is configured to build documentation locally or within a container, an attacker...

PT-2026-107302

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 1.14.6 Backstage versions prior to 1.15.4 Description The @backstage/plugin-techdocs-node package contains a flaw in the techdocs backend that allows a bypass of the mkdocs configuration sanitizer. Users capable of...

PT-2026-107305

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 1.15.4 Description The @backstage/plugin-techdocs-node package allows potential file exposure when the local TechDocs publisher is used via the techdocs.publisher.type variable set to 'local'. In this configuration,...

PT-2026-107244

Name of the Vulnerable Software and Affected Versions @backstage/plugin-techdocs-node versions 0.11.12 through 1.14.6 @backstage/plugin-techdocs-node versions 1.15.0 through 1.15.4 Description Improper validation of mkdocs plugin configuration in techdocs allows an authenticated attacker with...

CVE-2026-106507: Improper Link Resolution Before File Access

Backstage is an open framework for building developer portals. Prior to 1.15.4, the @backstage/plugin-techdocs-node package is affected by techdocs arbitrary file read via mkdocs snippets. Unsafe path resolution in TechDocs source tree handling allows an authenticated user who can register...

PT-2026-107304

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 1.15.4 Description The @backstage/plugin-techdocs-node package contains an arbitrary file read flaw. Unsafe path resolution during the handling of the TechDocs source tree allows an authenticated user with permissio...

CVE-2026-106508: Improper Limitation of a Pathname to a Restricted Directory

Backstage is an open framework for building developer portals. Prior to 1.15.4, the @backstage/plugin-techdocs-node package is affected by potential file exposure through local techdocs publisher. When using the local TechDocs publisher techdocs.publisher.type: 'local', it was possible for the...

CVE-2026-106455: Server-Side Request Forgery (SSRF)

Backstage is an open framework for building developer portals. From 0.11.12 until 1.14.7 and 1.15.5, the @backstage/plugin-techdocs-node package is affected by improper validation of mkdocs plugin configuration in techdocs. An authenticated attacker with control over a TechDocs source repository...

CVE-2026-88064

Backstage is an open framework for building developer portals. Prior to 1.14.6 and from 1.15.0 until 1.15.4, the @backstage/plugin-techdocs-node package insufficiently validates mkdocs.yml supplied by an authenticated user who can register or modify a TechDocs source. Unsafe Python YAML tags,...

CVE-2026-88064 Backstage: Improper input validation in TechDocs MkDocs configuration

Backstage is an open framework for building developer portals. Prior to 1.14.6 and from 1.15.0 until 1.15.4, the @backstage/plugin-techdocs-node package insufficiently validates mkdocs.yml supplied by an authenticated user who can register or modify a TechDocs source. Unsafe Python YAML tags,...

EUVD-2026-80784

Backstage is an open framework for building developer portals. Prior to 1.14.6 and from 1.15.0 until 1.15.4, the @backstage/plugin-techdocs-node package insufficiently validates mkdocs.yml supplied by an authenticated user who can register or modify a TechDocs source. Unsafe Python YAML tags,...

CVE-2026-88064

Backstage is an open-source framework for building developer portals. The @backstage/plugin-techdocs-node package, prior to 1.14.6 and from 1.15.0 until 1.15.4, insufficiently validates mkdocs.yml files supplied by an authenticated user who can register or modify a TechDocs source. Unsafe Python ...

CVE-2026-88064

Backstage is an open framework for building developer portals. Prior to 1.14.6 and from 1.15.0 until 1.15.4, the @backstage/plugin-techdocs-node package insufficiently validates mkdocs.yml supplied by an authenticated user who can register or modify a TechDocs source. Unsafe Python YAML tags,...

PT-2026-93759

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 1.14.6 Backstage versions 1.15.0 through 1.15.4 Description The @backstage/plugin-techdocs-node package insufficiently validates the mkdocs.yml file provided by an authenticated user with permissions to register or...

CVE-2026-88064: Improper Input Validation

Backstage is an open framework for building developer portals. Prior to 1.14.6 and from 1.15.0 until 1.15.4, the @backstage/plugin-techdocs-node package insufficiently validates mkdocs.yml supplied by an authenticated user who can register or modify a TechDocs source. Unsafe Python YAML tags,...

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: Unrestricted Upload of File with Dangerous Type

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...

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...