Angular: Information Leak via `HttpTransferCache` Bypass When Using `withRequestsMadeViaParent`

A security bypass vulnerability was discovered in @angular/common when Server-Side Rendering SSR and hydration are enabled in applications using a hierarchical HttpClient configuration with withRequestsMadeViaParent. The HttpTransferCache utility optimizes hydration by caching outgoing HTTP...

CVE-2026-88059

A flaw was found in Angular. When Server-Side Rendering SSR and hydration are used with a hierarchical HttpClient configured with withRequestsMadeViaParent, the HttpTransferCache can improperly cache authenticated responses. This occurs because a child TransferCache stores private response data i...

CVE-2026-88059 Angular: Information Leak via `HttpTransferCache` Bypass When Using `withRequestsMadeViaParent`

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.28, 21.2.20, and 22.1.1, Angular's @angular/common HttpTransferCache can cache an authenticated response when Server-Side Rendering SSR and hydration u...

EUVD-2026-75702

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.28, 21.2.20, and 22.1.1, Angular's @angular/common HttpTransferCache can cache an authenticated response when Server-Side Rendering SSR and hydration u...

CVE-2026-88059

Angular's @angular/common HttpTransferCache can leak authenticated responses when Server-Side Rendering uses a hierarchical HttpClient with withRequestsMadeViaParent. The child TransferCache evaluates a request as anonymous before a parent interceptor injects credentials (Authorization header, co...