CVE-2026-106490

Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper input validation in techdocs static content requests. When using the Azure Blob Storage provider, an authenticated Backstage user may be able to re...

CVE-2026-106455

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-2026-106490 Backstage: Improper input validation in TechDocs static content requests

Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper input validation in techdocs static content requests. When using the Azure Blob Storage provider, an authenticated Backstage user may be able to re...

CVE-2026-106490

The Backstage framework is vulnerable to an improper input validation flaw in the @backstage/plugin-techdocs-backend package prior to version 2.2.4 . When utilizing the Azure Blob Storage provider , an authenticated user may be able to access restricted TechDocs content if entity-level permission...

CVE-2026-106490 Backstage: Improper input validation in TechDocs static content requests

Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper input validation in techdocs static content requests. When using the Azure Blob Storage provider, an authenticated Backstage user may be able to re...

CVE-2026-106489

The Backstage framework is vulnerable in the @backstage/plugin-techdocs-backend package prior to version 2.2.4 due to improper authorization enforcement for TechDocs static content. An authenticated user with access to one documentation site can craft a URL to read documentation belonging to a di...

CVE-2026-106489 Backstage: Improper authorization enforcement for TechDocs static content

Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper authorization enforcement for techdocs static content. An authenticated user with access to one TechDocs documentation site could craft a URL able ...

CVE-2026-106455

The @backstage/plugin-techdocs-node package in Backstage (versions 0.11.12 through 1.14.7 and 1.15.5) is vulnerable to CWE-918 (Server-Side Request Forgery) due to improper validation of MkDocs plugin configurations. An authenticated attacker with control over a TechDocs source repository can tri...

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,...

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: 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,...

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: 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,...

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/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...

CVE-2026-29186

Summary: CVE-2026-29186 affects Backstage prior to version 1.14.3, due to a gap in the allowlist used by the @backstage/plugin-techdocs-node when processing MkDocs configuration keys. This gap enables an attacker to craft an mkdocs.yml that leads to arbitrary Python code execution, bypassing Tech...

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...

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...

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...