CVE-2026-101896: fallo de gravedad alta en angular
Angular: Denial of Service via Numeric URL Matrix Parameters in Server-Side Rendering (SSR)
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.2epss 0.9%
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.32, 21.2.24, and 22.2.0, the @angular/router URL parser stores numeric matrix parameter names and numeric outlet names as properties on initially empty JavaScript objects during Node.js server-side rendering. V8 can interpret these URL-derived keys as array indices and allocate dense backing stores sized to high numeric values, so repeated small path segments cause disproportionate per-segment heap consumption. An unauthenticated attacker can send overlapping requests containing repeated numeric matrix parameters when SSR is enabled, the router directly parses the request URL, and upstream proxies allow semicolons and multiple path segments, eventually exhausting the Node.js old-space heap and terminating the SSR worker. Pure client-side Angular applications are not affected. This issue is fixed in versions 20.3.32, 21.2.24, and 22.2.0.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVEs relacionadas — angular
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-111752HIGHAngular: Denial of Service via Unmatched Empty-Path Outlet Route Matching in Server-Side Rendering (SSR)EPSS 1.0%CVE-2026-111754MEDIUMAngular: Open Redirect via Protocol-Relative URLs in Server-Side Rendering (SSR)EPSS 1.0%CVE-2026-101895HIGHAngular SSR: Denial of Service (DoS) via Infinite Loop on Malformed DOCTYPEEPSS 0.9%CVE-2025-66035HIGHAngular HTTP Client Has XSRF Token Leakage via Protocol-Relative URLsEPSS 0.7%CVE-2026-111751HIGHAngular: Denial of Service via RouterLink Query Parameter Retention in Server-Side Rendering (SSR)EPSS 0.7%CVE-2026-54268HIGHAngular: Denial of Service (DoS) via OOM in Date Formatting (formatDate)EPSS 0.6%
Referencias
https://github.com/angular/angular/commit/03872a80bcf1c89b2b04cdd3f444b2ee954da583https://github.com/angular/angular/commit/5af61216eab8bf4a6697a1d79bda3d857c06f89dhttps://github.com/angular/angular/commit/ddfe21072ba32ca4cd9d7d3c6b7df66af81d58c4https://github.com/angular/angular/issues/70716https://github.com/angular/angular/pull/70717https://github.com/angular/angular/releases/tag/v20.3.32https://github.com/angular/angular/releases/tag/v21.2.24https://github.com/angular/angular/releases/tag/v22.2.0https://github.com/angular/angular/security/advisories/GHSA-ff3f-86qr-9cv3