Server-side Request Forgery (SSRF) Affecting 9router package, versions <0.4.80


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.41% (36th percentile)

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  • Snyk IDSNYK-JS-9ROUTER-21694033
  • published24 Oct 2026
  • disclosed23 Jul 2026
  • creditUnknown

Introduced: 23 Jul 2026

CVE-2026-63313  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade 9router to version 0.4.80 or higher.

Overview

9router is a 9Router CLI - Start and manage 9Router server

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the fetch process in the /v1/web/fetch endpoint when user-supplied URLs are passed to external scraping providers without adequate validation or blocklisting of internal or sensitive address ranges. An attacker can access internal network resources and sensitive metadata by supplying crafted URLs.

CVSS Base Scores

version 4.0
version 3.1