PT-2026-107270

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 2.2.4 Description The @backstage/plugin-techdocs-backend package contains improper authorization enforcement for static content. An authenticated user with access to one TechDocs documentation site can craft a URL t...

PT-2026-107263

Name of the Vulnerable Software and Affected Versions Backstage versions 0.3.0 through 0.6.14 Backstage versions 0.7.0 through 0.7.4 Description The @backstage/plugin-auth-node package fails to consistently honor explicit negative email verification during shared OAuth profile normalization. This...

PT-2026-107300

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 3.3.1 Backstage versions prior to 3.4.1 Backstage versions prior to 4.0.3 Backstage versions prior to 4.1.0 Description The @backstage/plugin-scaffolder-backend package contains an authorization bypass regarding...

PT-2026-107299

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 4.1.0 Description The @backstage/plugin-scaffolder-backend package may expose sensitive information within Scaffolder task failure events. An authenticated user can retrieve backend-managed credentials used during...

PT-2026-107297

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 3.3.1 Backstage versions prior to 3.4.1 Backstage versions prior to 4.0.3 Backstage versions prior to 4.1.0 Description The @backstage/plugin-scaffolder-backend package contains improper task state validation within...

PT-2026-107248

Name of the Vulnerable Software and Affected Versions @backstage/plugin-scaffolder-backend-module-sentry versions 0.3.0 through 0.3.7 Description Improper input validation in sentry scaffolder actions allows an authenticated internal user to force the backend to contact unintended destinations...

PT-2026-107267

Name of the Vulnerable Software and Affected Versions @backstage/plugin-scaffolder-backend-module-bitbucket-cloud versions prior to 0.3.10 @backstage/plugin-scaffolder-backend-module-bitbucket-server versions prior to 0.2.25 Description Bitbucket pull-request Scaffolder actions fail to sufficient...

PT-2026-107272

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 0.6.17 Description The @backstage/plugin-proxy-backend package contains improper input validation within the proxy-backend. An authenticated user can craft a request URL that forces the proxy-backend to forward the...

PT-2026-107269

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 0.4.20 Description The @backstage/plugin-auth-backend-module-oidc-provider package contains improper authentication within the OIDC provider. In deployments utilizing OIDC email-based identity resolution with a...

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-2026-107310

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-2026-107303

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 4.1.0 Description The @backstage/plugin-scaffolder-backend package contains improper input validation regarding the ordering of scaffolder task lists. An authenticated user with permissions to create and read...

PT-2026-107298

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 3.3.1 Backstage versions prior to 3.4.1 Backstage versions prior to 4.0.3 Backstage versions prior to 4.1.0 Description The @backstage/plugin-scaffolder-backend package contains a sensitive information exposure issu...

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...

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,...

CVE-2026-106503: Improper Handling of Case Sensitivity

Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by scaffolder action input authorization bypass. An authenticated user with access to affected Scaffolder templates could bypass...

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-2026-106508: 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-2026-106507: 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...

CVE-2026-106506: Exposure of Sensitive Information Through Data Queries

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by improper input validation in scaffolder task list ordering. An authenticated Backstage user with permission to create and read relevant scaffolder tasks m...