8.7

CVE-2026-41423

Angular: SSRF via protocol-relative and backslash URLs in Angular Platform-Server

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to versions 19.2.21, 20.3.19, 21.2.9, and 22.0.0-next.8, a Server-Side Request Forgery (SSRF) vulnerability exists in @angular/platform-server due to improper handling of URLs during Server-Side Rendering (SSR). When an attacker sends a request such as GET /\evil.com/ HTTP/1.1 the server engine (Express, etc.) passes the URL string to Angular’s rendering functions. Because the URL parser normalizes the backslash to a forward slash for HTTP/HTTPS schemes, the internal state of the application is hijacked to believe the current origin is evil.com. This misinterpretation tricks the application into treating the attacker’s domain as the local origin. Consequently, any relative HttpClient requests or PlatformLocation.hostname references are redirected to the attacker controlled server, potentially exposing internal APIs or metadata services. This issue has been patched in versions 19.2.21, 20.3.19, 21.2.9, and 22.0.0-next.8.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Angular ≫ Angular SwPlatformnode.js Version < 19.2.21
Angular ≫ Angular SwPlatformnode.js Version >= 20.0.0 < 20.3.19
Angular ≫ Angular SwPlatformnode.js Version >= 21.0.0 < 21.2.9
Angular ≫ Angular Version22.0.0 Updatenext0 SwPlatformnode.js
Angular ≫ Angular Version22.0.0 Updatenext1 SwPlatformnode.js
Angular ≫ Angular Version22.0.0 Updatenext2 SwPlatformnode.js
Angular ≫ Angular Version22.0.0 Updatenext3 SwPlatformnode.js
Angular ≫ Angular Version22.0.0 Updatenext4 SwPlatformnode.js
Angular ≫ Angular Version22.0.0 Updatenext5 SwPlatformnode.js
Angular ≫ Angular Version22.0.0 Updatenext6 SwPlatformnode.js
Angular ≫ Angular Version22.0.0 Updatenext7 SwPlatformnode.js
Angular ≫ Angular Version22.0.0 Updatenext8 SwPlatformnode.js
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.114
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
security-advisories@github.com 8.7 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-918 Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.