---
id: CVE-2026-70595
title: Ghost is a Node.js content management system
summary: >-
  Ghost is a Node.js content management system. From 6.26.0 until 6.54.1, a
  validation issue allowed some functionality, such as Webmentions, to be abused
  by an unauthenticated user to make limited HTTP requests to hosts in the Ghost
  serve…
severity: medium
cvss: 4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N'
cwe:
  - CWE-918
vendor: ghost
product: ghost
affected:
  - 'ghost >= 6.26.0, < 6.54.1'
patched:
  - ghost 6.54.1
published: '2026-08-05'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:51:43.490'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-70595'
references:
  - url: 'https://github.com/TryGhost/Ghost/security/advisories/GHSA-x5mm-wm4g-j5xv'
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-x5mm-wm4g-j5xv'
tags:
  - nvd
  - ghsa
  - npm
epss: 0.00176
epssPercentile: 0.07369
aliases:
  - GHSA-x5mm-wm4g-j5xv
ecosystem: npm
ingestedAt: '2026-08-05T14:48:44.246Z'
---

## Overview

Ghost is a Node.js content management system. From 6.26.0 until 6.54.1, a validation issue allowed some functionality, such as Webmentions, to be abused by an unauthenticated user to make limited HTTP requests to hosts in the Ghost server's internal network. A successful attack would not result in any response data being returned. This vulnerability is fixed in 6.54.1.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-70595)

Affected packages:

- `ghost >= 6.26.0, < 6.54.1`

Patched in:

- `ghost 6.54.1`

Source: https://github.com/advisories/GHSA-x5mm-wm4g-j5xv