CVE-2026-73563

A flaw was found in the @backstage/plugin-auth-backend component of Backstage. This vulnerability allows an unauthenticated remote attacker to bypass the redirecturi allowlist in the experimental dynamic client registration feature. By crafting a malicious redirect Uniform Resource Identifier URI...

CVE-2026-73666

OpenChoreo is a developer platform for Kubernetes. Prior to 1.0.4, 1.1.4, and 1.2.1, the OpenChoreo Backstage backend hardcoded backend.auth.dangerouslyDisableDefaultAuthPolicy and auth.providers.guest.dangerouslyAllowOutsideDevelopment to true, exposing /api/ without authentication and allowing...

CVE-2026-73666 OpenChoreo: Unauthenticated Backstage developer-portal API exposes OpenChoreo catalog data, scaffolder logs, and allows unauthenticated catalog write/delete

OpenChoreo is a developer platform for Kubernetes. Prior to 1.0.4, 1.1.4, and 1.2.1, the OpenChoreo Backstage backend hardcoded backend.auth.dangerouslyDisableDefaultAuthPolicy and auth.providers.guest.dangerouslyAllowOutsideDevelopment to true, exposing /api/ without authentication and allowing...

CVE-2026-73666 OpenChoreo: Unauthenticated Backstage developer-portal API exposes OpenChoreo catalog data, scaffolder logs, and allows unauthenticated catalog write/delete

OpenChoreo is a developer platform for Kubernetes. Prior to 1.0.4, 1.1.4, and 1.2.1, the OpenChoreo Backstage backend hardcoded backend.auth.dangerouslyDisableDefaultAuthPolicy and auth.providers.guest.dangerouslyAllowOutsideDevelopment to true, exposing /api/ without authentication and allowing...

CVE-2026-73666

OpenChoreo OpenShift/Backstage backend vulnerability (CVE-2026-73666) affects OpenChoreo Developer Platform for Kubernetes prior to versions 1.0.4, 1.1.4, and 1.2.1. The Backstage backend hardcoded backend.auth.dangerouslyDisableDefaultAuthPolicy and auth.providers.guest.dangerouslyAllowOutsideDe...

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 Backstage: Unauthenticated OAuth account takeover via `redirect_uri` allowlist bypass in `@backstage/plugin-auth-backend`

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

Backstage CVE-2026-73563 affects the @backstage/plugin-auth-backend dynamic client registration and CIMD features. Before 0.29.2, full-string glob matching of auth.experimentalDynamicClientRegistration.allowedRedirectUriPatterns and auth.experimentalClientIdMetadataDocuments patterns allowed a ho...

CVE-2026-73563 Backstage: Unauthenticated OAuth account takeover via `redirect_uri` allowlist bypass in `@backstage/plugin-auth-backend`

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...

PT-2026-71887

OpenChoreo is a developer platform for Kubernetes. Prior to 1.0.4, 1.1.4, and 1.2.1, the OpenChoreo Backstage backend hardcoded backend.auth.dangerouslyDisableDefaultAuthPolicy and auth.providers.guest.dangerouslyAllowOutsideDevelopment to true, exposing /api/ without authentication and allowing...

Important: Red Hat Security Advisory: Red Hat Developer Hub 1.10.3 release.

Red Hat Developer Hub 1.10.3 has been released. Red Hat Developer Hub RHDH is Red Hat's enterprise-grade, self-managed, customizable developer portal based on Backstage.io. RHDH is supported on OpenShift and other major Kubernetes clusters AKS, EKS, GKE. The core features of RHDH include a single...

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...

@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...

Important: Red Hat Security Advisory: Red Hat Developer Hub 1.9.7 release.

Red Hat Developer Hub 1.9.7 has been released. Red Hat Developer Hub RHDH is Red Hat's enterprise-grade, self-managed, customizable developer portal based on Backstage.io. RHDH is supported on OpenShift and other major Kubernetes clusters AKS, EKS, GKE. The core features of RHDH include a single...

Important: Red Hat Security Advisory: Red Hat Developer Hub 1.10.2 release.

Red Hat Developer Hub 1.10.2 has been released. Red Hat Developer Hub RHDH is Red Hat's enterprise-grade, self-managed, customizable developer portal based on Backstage.io. RHDH is supported on OpenShift and other major Kubernetes clusters AKS, EKS, GKE. The core features of RHDH include a single...

CVE-2026-9842

The Backstage - Customizer Demo Access plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.4.2. This is due to the plugin assigning the manageoptions capability to the backstagecustomizeruser demo role, which is more permissive than necessary for...

CVE-2026-9842

The Backstage - Customizer Demo Access plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.4.2. This is due to the plugin assigning the manageoptions capability to the backstagecustomizeruser demo role, which is more permissive than necessary for...

EUVD-2026-42160

The Backstage - Customizer Demo Access plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.4.2. This is due to the plugin assigning the manageoptions capability to the backstagecustomizeruser demo role, which is more permissive than necessary for...

CVE-2026-9842 Backstage <= 1.4.2 - Unauthenticated Privilege Escalation via Permissive Demo Role Capabilities

The Backstage - Customizer Demo Access plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.4.2. This is due to the plugin assigning the manageoptions capability to the backstagecustomizeruser demo role, which is more permissive than necessary for...

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...