CVE-2026-106489: Improper Limitation of a Pathname to a Restricted Directory

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-2026-106508: 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-2026-88064

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,...

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,...

PT-2026-93759

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 1.14.6 Backstage versions 1.15.0 through 1.15.4 Description The @backstage/plugin-techdocs-node package insufficiently validates the mkdocs.yml file provided by an authenticated user with permissions to register or...

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-2026-73563

Backstage is an open framework for building developer portals. Prior to 0.29.2, the experimental dynamic client registration and client ID metadata document features in the @backstage/plugin-auth-backend use full-string matcher.isMatch glob matching for...

CVE-2026-73563: URL Redirection to Untrusted Site

Backstage is an open framework for building developer portals. Prior to 0.29.2, the experimental dynamic client registration and client ID metadata document features in the @backstage/plugin-auth-backend use full-string matcher.isMatch glob matching for...

Open Redirect

Overview @backstage/plugin-auth-backend is an A Backstage backend plugin that handles authentication Affected versions of this package are vulnerable to Open Redirect via the allowlist matching process. An attacker can intercept authorization codes by registering an OAuth client with a crafted...

GHSA-38HQ-7X33-PHP4 @backstage/plugin-auth-backend: Unauthenticated OAuth account takeover via `redirect_uri` allowlist bypass

Impact The allowlist matching used by the experimental dynamic client registration and client ID metadata document CIMD features in @backstage/plugin-auth-backend matched glob patterns against the full URL string. A wildcard could therefore match across URL component boundaries: a pattern such as...

PT-2026-67470

Impact The allowlist matching used by the experimental dynamic client registration and client ID metadata document CIMD features in @backstage/plugin-auth-backend matched glob patterns against the full URL string. A wildcard could therefore match across URL component boundaries: a pattern such as...

PT-2026-71711

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 0.29.2 Description Experimental dynamic client registration and client ID metadata document features in the @backstage/plugin-auth-backend use full-string matcher.isMatch glob matching for the...

CVE-2026-9842

The CVE-2026-9842 entry concerns the Backstage - Customizer Demo Access plugin for WordPress (up to version 1.4.2). The root cause is that the plugin assigns the manage_options capability to the backstage_customizer_user demo role, which is more permissive than required for a Demo Access/Customiz...

Malicious Package

Overview @immobiliarelabs/backstage-plugin-gitlab-backend is a malicious package. linked to a variant of the "Miasma" supply chain attack targeting the LeoPlatform npm ecosystem. A malicious actor compromised a legitimate maintainer account and used it to publish infected versions of this package...

Malicious Package

Overview @immobiliarelabs/backstage-plugin-ldap-auth is a malicious package. linked to a variant of the "Miasma" supply chain attack targeting the LeoPlatform npm ecosystem. A malicious actor compromised a legitimate maintainer account and used it to publish infected versions of this package in a...

Malicious code in @immobiliarelabs/backstage-plugin-gitlab-backend (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 096fc86987f4a25a5fb6572968e0c7309d71ed3e6ab16c239427de98c7d30ae7 The package ships a binding.gyp at the package root whose contents use GYP command-expansion syntax !... inside its targets/sources fields. npm...

Malicious code in @immobiliarelabs/backstage-plugin-ldap-auth-backend (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector dbe41ed7d4257171c43c1047d7fde036575b57305b26d18cec61d1f1a20d33b1 The package ships a binding.gyp at the package root containing GYP command-expansion syntax !... in its sources/targets configuration binding.gyp lin...

Malicious code in @immobiliarelabs/backstage-plugin-ldap-auth (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector e447b204a3dbe39ad2390ad721dfc14f32b64e2c27d8b4efaf99a27e9cde7b92 The package ships a binding.gyp at the tarball root that contains GYP command-expansion syntax !... / !@... in its sources/targets configuration...

MAL-2026-6528 Malicious code in @immobiliarelabs/backstage-plugin-ldap-auth (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector e447b204a3dbe39ad2390ad721dfc14f32b64e2c27d8b4efaf99a27e9cde7b92 The package ships a binding.gyp at the tarball root that contains GYP command-expansion syntax !... / !@... in its sources/targets configuration...

MAL-2026-6526 Malicious code in @immobiliarelabs/backstage-plugin-gitlab (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 00eb86df154a9532085ad285ee63cd4c4f9a95a6fe983b9930cd059dfb4cb3f5 The package ships a binding.gyp at the package root whose targets/sources fields contain GYP command-expansion syntax !... at line 6. npm implicitly...