CVE-2026-106508 Backstage: Potential file exposure through local TechDocs publisher

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...

Path traversal for local publishers in TechDocs backend

Impact A malicious actor with the ability to register entities in the Software Catalog is able to write files to arbitrary paths on the techdocs backend host instance when techdocs.publisher.type is set to local. This vulnerability is mitigated by the fact that the Software Catalog must be...