Is CVE-2026-105647 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-105647?

CVE-2026-105647 has a CVSS v3 severity of MEDIUM (4).

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CVE-2026-105647

Description

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.