Angular Server-Side Rendering (SSR): Denial of Service via Numeric URL Matrix Parameters

According to its self-reported version number, Angular is prior to 20.0.0, 20.x prior to 20.3.32, 21.x prior to 21.2.24 or 22.x prior to 22.2.0. It is, therefore, affected by a denial of service vulnerability in @angular/router when Server-Side Rendering (SSR) is enabled. Numeric URL matrix parameter or outlet names cause the V8 engine to allocate dense array backing stores sized to the largest index, allowing an unauthenticated remote attacker to achieve asymmetric memory amplification and exhaust the Node.js memory heap. (CVE-2026-101896)

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
115572	Angular < 20.3.32 Denial of Service	Web App Scanning	Component Vulnerability	Version Based	high
115571	Angular 20.x < 20.3.32 Denial of Service	Web App Scanning	Component Vulnerability	Version Based	high
115570	Angular 21.x < 21.2.24 Denial of Service	Web App Scanning	Component Vulnerability	Version Based	high
115569	Angular 22.x < 22.2.0 Denial of Service	Web App Scanning	Component Vulnerability	Version Based	high

Detections

Analytics

CVE-2026-101896

high

Tenable Plugins

high

high

high

high