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: 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,...

PT-2026-71711

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...

@backstage/plugin-auth-backend (>=0.0.0-nightly-20240122021809, <=0.22.11), @backstage/plugin-auth-backend-module-aws-alb-provider (>=0.0.0-nightly-20240126021148, <=0.4.17-next.0) +12 more potentially affected by CVE-2026-73563 via @backstage/plugin-auth-backend (>=0.0.0-nightly-20240929023448, <=0.29.1-next.0)

@backstage/plugin-auth-backend NPM version =0.0.0-nightly-20240929023448, =0.0.0-nightly-20240122021809, =0.0.0-nightly-20240126021148, =0.0.0-nightly-20240122021809, =0.0.0-nightly-202201422556, =0.0.0-nightly-202111222339, =0.0.0-nightly-2021102522541, =0.0.0-nightly-20220203021748,...

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...

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...

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...

ROOT-APP-NPM-CVE-2026-32236 CVE-2026-32236 in @rootio/backstage__plugin-auth-backend - Patched by Root

Root has patched CVE-2026-32236 in the @rootio/backstageplugin-auth-backend package for Root:npm. Multiple fixed versions available...

ROOT-APP-NPM-CVE-2026-32235 CVE-2026-32235 in @rootio/backstage__plugin-auth-backend - Patched by Root

Root has patched CVE-2026-32235 in the @rootio/backstageplugin-auth-backend package for Root:npm. Multiple fixed versions available...

CVE-2026-44374: Incorrect Authorization

Backstage is an open framework for building developer portals. Prior to 0.6.11, the unprocessed entities read endpoints in @backstage/plugin-catalog-backend-module-unprocessed do not enforce permission authorization checks. Any authenticated user can access unprocessed entity records regardless o...

Incorrect Authorization

Overview @backstage/plugin-catalog-backend-module-unprocessed is a Backstage Catalog module to view unprocessed entities Affected versions of this package are vulnerable to Incorrect Authorization in the unprocessed entities read endpoints. An attacker can gain unauthorized access to sensitive...

Backstage: Catalog unprocessed read endpoints allow authenticated cross-owner data access without permission checks

Impact The unprocessed entities read endpoints in @backstage/plugin-catalog-backend-module-unprocessed do not enforce permission authorization checks. Any authenticated user can access unprocessed entity records regardless of ownership. This is an information disclosure vulnerability affecting...

PT-2026-38311

Impact The unprocessed entities read endpoints in @backstage/plugin-catalog-backend-module-unprocessed do not enforce permission authorization checks. Any authenticated user can access unprocessed entity records regardless of ownership. This is an information disclosure vulnerability affecting...

Malicious code in backstage-plugin-wpe-catalog (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 8ba337d37ef9344a2df43beb88ffec3f1061cba440eb4c4ed69798da6f3122b5 The package backstage-plugin-wpe-catalog was found to contain malicious code...

MAL-2026-1657 Malicious code in backstage-plugin-wpe-catalog (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 8ba337d37ef9344a2df43beb88ffec3f1061cba440eb4c4ed69798da6f3122b5 The package backstage-plugin-wpe-catalog was found to contain malicious code...

CVE-2026-32235

An allowlist bypass flaw has been discovered in the npm @backstage/plugin-auth-backend package. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents and configured allowedRedirectUriPatterns are affected. A specially crafted redirect URI can pass th...

CVE-2026-32236 @backstage/plugin-auth-backend: SSRF in experimental CIMD metadata fetch

Backstage is an open framework for building developer portals. Prior to 0.27.1, a Server-Side Request Forgery SSRF vulnerability exists in @backstage/plugin-auth-backend when auth.experimentalClientIdMetadataDocuments.enabled is set to true. The CIMD metadata fetch validates the initial clientid...

CVE-2026-32236 @backstage/plugin-auth-backend: SSRF in experimental CIMD metadata fetch

Backstage is an open framework for building developer portals. Prior to 0.27.1, a Server-Side Request Forgery SSRF vulnerability exists in @backstage/plugin-auth-backend when auth.experimentalClientIdMetadataDocuments.enabled is set to true. The CIMD metadata fetch validates the initial clientid...