Angular: Cache-Key Ambiguity in HttpTransferCache Leading to Cross-Request Response Reuse and State Poisoning

Angular's HttpTransferCache caches HTTP requests made during Server-Side Rendering SSR so that they can be reused during client-side hydration. During SSR, HttpTransferCache previously generated identical key material for distinct request parameters when repeated values were present because...

CVE-2026-68945

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.27, 21.2.19, and 22.0.2, HttpTransferCache comma-joins repeated request parameters, allowing semantically distinct HttpClient requests to use the same...

EUVD-2026-52343

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.27, 21.2.19, and 22.0.2, HttpTransferCache comma-joins repeated request parameters, allowing semantically distinct HttpClient requests to use the same...

CVE-2026-68945

CVE-2026-68945 affects Angular’s HttpTransferCache in HttpClient. Before 20.3.27, 21.2.19, and 22.0.2, comma-joining repeated request parameters caused semantically distinct requests to share a transfer-cache key, leading to reuse of a wrong backend response and potential state poisoning. The iss...

PT-2026-49582

Name of the Vulnerable Software and Affected Versions Angular versions prior to 22.0.1 Angular versions prior to 21.2.17 Angular versions prior to 20.3.25 Description Angular's HttpTransferCache caches HTTP requests during Server-Side Rendering SSR to be reused during client-side hydration,...