CVE-2026-70595

Ghost: Server-Side Request Forgery Mitigation Issue

State: Published
Severity: 4.0 Medium
Published: Aug 5, 2026
Updated: Aug 6, 2026
Reserved: Aug 4, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	4.0 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N	GitHub_M

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
GhostTryGhost	>= 6.26.0, < 6.54.1Affected

References

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

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