Backstage: Remote code execution via crafted markdown_extensions in TechDocs mkdocs.yml

Impact 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. Patches Patched in @backstage/plugin-techdocs-node, version 1.15.4. Workarounds If you cannot upgrade...

GHSA-4488-J8VJ-VQQV Backstage: Remote code execution via crafted markdown_extensions in TechDocs mkdocs.yml

Impact 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. Patches Patched in @backstage/plugin-techdocs-node, version 1.15.4. Workarounds If you cannot upgrade...

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')

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 Use of Externally-Controlled Input to Select Classes or Code 'Unsafe Reflection' via...

Improper Neutralization of Special Elements Used in a Template Engine

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 Improper Neutralization of Special Elements Used in a Template Engine via insufficient...

CVE-2026-106558

Backstage is an open framework for building developer portals. Prior to 1.14.8, 1.15.6, and 2.0.1, the @backstage/plugin-techdocs-node package improperly validated mapping-style markdownextensions configuration. An authenticated attacker who can register or influence an SCM-backed documentation...

CVE-2026-106558

Backstage is an open framework for building developer portals. Prior to 1.14.8, 1.15.6, and 2.0.1, the @backstage/plugin-techdocs-node package improperly validated mapping-style markdownextensions configuration. An authenticated attacker who can register or influence an SCM-backed documentation...

CVE-2026-106558 Backstage: Improper validation of TechDocs MkDocs configuration

Backstage is an open framework for building developer portals. Prior to 1.14.8, 1.15.6, and 2.0.1, the @backstage/plugin-techdocs-node package improperly validated mapping-style markdownextensions configuration. An authenticated attacker who can register or influence an SCM-backed documentation...

CVE-2026-106558 Backstage: Improper validation of TechDocs MkDocs configuration

Backstage is an open framework for building developer portals. Prior to 1.14.8, 1.15.6, and 2.0.1, the @backstage/plugin-techdocs-node package improperly validated mapping-style markdownextensions configuration. An authenticated attacker who can register or influence an SCM-backed documentation...

CVE-2026-106558 Backstage: Improper validation of TechDocs MkDocs configuration

Backstage is an open framework for building developer portals. Prior to 1.14.8, 1.15.6, and 2.0.1, the @backstage/plugin-techdocs-node package improperly validated mapping-style markdownextensions configuration. An authenticated attacker who can register or influence an SCM-backed documentation...

EUVD-2026-94371

Backstage is an open framework for building developer portals. Prior to 1.14.8, 1.15.6, and 2.0.1, the @backstage/plugin-techdocs-node package improperly validated mapping-style markdownextensions configuration. An authenticated attacker who can register or influence an SCM-backed documentation...

CVE-2026-106558

The Backstage developer portal framework is vulnerable in versions prior to 1.14.8 , 1.15.6 , and 2.0.1 due to improper validation of mapping-style markdown_extensions configuration in the @backstage/plugin-techdocs-node package. An authenticated attacker capable of influencing an SCM-backed docu...

CVE-2026-106558: Deserialization of Untrusted Data

Backstage is an open framework for building developer portals. Prior to 1.14.8, 1.15.6, and 2.0.1, the @backstage/plugin-techdocs-node package improperly validated mapping-style markdownextensions configuration. An authenticated attacker who can register or influence an SCM-backed documentation...