Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.33, 21.2.25, and 22.2.1, ServerPlatformLocation in Angular server-side rendering checks for protocol-relative URLs before WHATWG URL normalization. A request path containing a popping dot segment followed by multiple slashes can bypass the raw resolveUrl check and normalize to a pathname beginning with two slashes. When Angular SSR detects a mismatch with the router's final location, it can place that pathname in an HTTP Location header, causing a browser to navigate to an attacker-controlled origin. Affected applications use @angular/platform-server and @angular/ssr and either expose compatible parameter or child route shapes or pass user-controlled navigation targets through infrastructure that preserves the relevant dot segments or semicolons. Pure client-side SPAs are not affected. This issue is fixed in versions 20.3.33, 21.2.25, and 22.2.1.

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Source ID Title
Github GHSA Github GHSA GHSA-w739-gvwx-grc3 @angular/platform-server: Open Redirect via Protocol-Relative URLs in Server-Side Rendering (SSR)
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History

Wed, 04 Nov 2026 00:30:00 +0000

Type Values Removed Values Added
First Time appeared Angular
Angular angular
Vendors & Products Angular
Angular angular

Tue, 03 Nov 2026 21:00:00 +0000

Type Values Removed Values Added
Description Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.33, 21.2.25, and 22.2.1, ServerPlatformLocation in Angular server-side rendering checks for protocol-relative URLs before WHATWG URL normalization. A request path containing a popping dot segment followed by multiple slashes can bypass the raw resolveUrl check and normalize to a pathname beginning with two slashes. When Angular SSR detects a mismatch with the router's final location, it can place that pathname in an HTTP Location header, causing a browser to navigate to an attacker-controlled origin. Affected applications use @angular/platform-server and @angular/ssr and either expose compatible parameter or child route shapes or pass user-controlled navigation targets through infrastructure that preserves the relevant dot segments or semicolons. Pure client-side SPAs are not affected. This issue is fixed in versions 20.3.33, 21.2.25, and 22.2.1.
Title Angular: Open Redirect via Protocol-Relative URLs in Server-Side Rendering (SSR)
Weaknesses CWE-601
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-11-03T21:23:55.644Z

Reserved: 2026-10-16T17:52:09.081Z

Link: CVE-2026-111754

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-03T21:16:58.203

Modified: 2026-11-03T22:17:44.523

Link: CVE-2026-111754

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T00:15:04Z

Weaknesses