Backstage has improper input validation in TechDocs Markdown extension configuration

Impact An authenticated user who can register or modify documentation sources may cause a TechDocs build to access resources outside the intended documentation boundary. Depending on deployment configuration, this may expose sensitive backend-host data or internal network resources. Patches Patch...

CVE-2026-106557

The Backstage framework (versions prior to 1.14.6 and 1.15.4 ) is vulnerable to improper input validation within the @backstage/plugin-techdocs-node package. An authenticated user capable of registering or modifying documentation sources can trigger a TechDocs build that accesses resources outsid...

CVE-2026-106557 Backstage: Improper input validation in TechDocs Markdown extension configuration

Backstage is an open framework for building developer portals. Prior to 1.14.6 and 1.15.4, the @backstage/plugin-techdocs-node package did not sufficiently validate TechDocs Markdown extension configuration. An authenticated user who can register or modify documentation sources may cause a TechDo...

EUVD-2026-94482

Backstage is an open framework for building developer portals. Prior to 1.14.6 and 1.15.4, the @backstage/plugin-techdocs-node package did not sufficiently validate TechDocs Markdown extension configuration. An authenticated user who can register or modify documentation sources may cause a TechDo...