Vulnerability · Published Aug 5, 2026 · Assigned by GitHub_M

CVE-2026-70595Ghost: Server-Side Request Forgery Mitigation Issue

Medium 4.0

In plain English

A medium-severity server-side request forgery in Ghost from TryGhost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.0Medium

Exploit odds (30 days)0.3%top 79.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	ghost	6.54.1	GHSA-x5mm-wm4g-j5xv

Affected products (as reported)

Vendor	Product	Versions
TryGhost	Ghost	>= 6.26.0, < 6.54.1

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N

References

https://github.com/TryGhost/Ghost/security/advisories/GHSA-x5mm-wm4g-j5xv x_refsource_CONFIRM