@angular/platform-server: Open Redirect via Protocol-Relative URLs in Server-Side Rendering (SSR)

影響: npm:@angular/platform-server >= 22.0.0, < 22.2.1 → 22.2.1, npm:@angular/platform-server >= 21.0.0, < 21.2.25 → 21.2.25, npm:@angular/platform-server >= 20.0.0, < 20.3.33 → 20.3.33, npm:@angular/platform-server <= 19.2.25

An open redirect vulnerability was identified in @angular/platform-server when Server-Side Rendering (SSR) is enabled. When Angular SSR renders an incoming request, URL resolution and platform navigation are managed by ServerPlatformLocation using resolveUrl (or parseUrl in v20). While resolveUrl rejected protocol-relative URLs whose raw string directly started with //, this check ran prior to WHATWG URL normalization. When a request URL includes a popping dot-segment followed by multiple slash…

Read on GitHub Advisory Database

On 10/20/2026, 11:35 PM, GitHub Advisory Database published "@angular/platform-server: Open Redirect via Protocol-Relative URLs in Server-Side Rendering (SSR)" (type: Advisory). Severity is "Medium" (medium). Related technologies: JavaScript / Node.js, Angular. CVE: CVE-2026-111754.