Server-Side Request Forgery (SSRF) in Angular - #VU126502
Published: April 20, 2026
Vulnerability identifier: #VU126502
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Google
Affected software:
Angular
Angular
Detailed vulnerability description
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to server-side request forgery in Angular server-side rendering URL handling when processing protocol-relative or backslash-prefixed request URLs. A remote attacker can send a specially crafted request URL to disclose sensitive information.
Exploitation requires the application to use Angular SSR via renderModule, renderApplication, or CommonEngine, pass a pathname as the URL to the rendering method, and perform server-side HTTP requests with relative URLs or use PlatformLocation.hostname to build URLs.
Remediation
Install security update from vendor's website.