SB2026042027 - Server-Side Request Forgery (SSRF) in Angular

Description

This security bulletin contains information about 1 vulnerability.

1) Server-Side Request Forgery (SSRF) (CVE-ID: N/A)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: 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

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 update from vendor's website.

References

• https://github.com/angular/angular/security/advisories/GHSA-45q2-gjvg-7973
• https://github.com/advisories/GHSA-45q2-gjvg-7973