Server-side Request Forgery (SSRF) Affecting @angular/ssr package, versions >=19.0.0-next.0 <19.2.18>=20.0.0-next.0 <20.3.6>=21.0.0-next.0 <21.0.0-next.8


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-JS-ANGULARSSR-13635722
  • published19 Oct 2025
  • disclosed16 Oct 2025
  • creditmeDavidNS

Introduced: 16 Oct 2025

NewCVE-2025-62427  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade @angular/ssr to version 19.2.18, 20.3.6, 21.0.0-next.8 or higher.

Overview

@angular/ssr is a the Angular server side rendering utilities.

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the createRequestUrl function. An attacker can cause the server to make arbitrary HTTP requests to external domains by supplying a specially crafted request path that begins with double forward slashes or backslashes, which manipulates the URL resolution process and results in subsequent server-side HTTP requests being directed to attacker-controlled endpoints.

CVSS Base Scores

version 4.0
version 3.1