CVE-2026-105647: Ghost: Server-Side Request Forgery in Bookmark Fetching
Ghost is a Node.js content management system. From 6.54.1 until 6.65.0, 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 issue is fixed in version 6.65.0.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Ghostto a version that resolves this vulnerability.Fixed in 6.65.0
Event History
Frequently Asked Questions
Which Ghost installations are affected?
Ghost versions from 6.54.1 through 6.65.0 are affected. The issue is fixed in version 6.65.0.
Does exploitation require an account or user interaction?
No. An unauthenticated attacker can abuse affected functionality, including Webmentions, without user interaction.
What can an attacker obtain through the SSRF?
The attacker can cause limited HTTP requests to hosts on the Ghost server's internal network. Response data is not returned to the attacker.
What should teams do if they cannot patch immediately?
The provided information does not specify a workaround. Prioritize upgrading to Ghost 6.65.0, especially where the Ghost server can reach sensitive internal services.