Asymmetric Resource Consumption (Amplification) in Angular - #VU153183
Published: October 2, 2026
Vulnerability identifier: #VU153183
CSH Severity: Medium
CVSS v4: 8.2 [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]
CVE-ID: N/A
CWE-ID: CWE-405
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper validation of auxiliary outlet segments in @angular/router route recognition when processing crafted request URLs containing arbitrary empty-path outlet segments. A remote attacker can send a crafted request to cause a denial of service.
Only on-demand server-side rendering applications running on Node.js/V8 with susceptible route configurations are affected.
Affected software
Angular
Remediation
Install security update from vendor's website.
Angular - addressed in versions 20.3.33, 21.2.25, 22.2.1