Server-side Request Forgery (SSRF) Affecting ghost package, versions >=6.26.0 <6.54.1


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.18% (8th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Server-side Request Forgery (SSRF) vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-JS-GHOST-18610069
  • published11 Aug 2026
  • disclosed5 Aug 2026
  • creditHwang Seyeon

Introduced: 5 Aug 2026

NewCVE-2026-70595  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade ghost to version 6.54.1 or higher.

Overview

ghost is a publishing platform

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) through the comments and Webmentions URL resolution in comments-service-emails.js and comments.js. An attacker can make the server issue limited HTTP requests to hosts on the Ghost instance’s internal network by supplying content that resolves to a page-backed comment or mention URL. A successful request does not return response data, but it can still be used to probe internal services reachable from the Ghost server.

CVSS Base Scores

version 4.0
version 3.1