CVE-2026-105647: Ghost: Server-Side Request Forgery in Bookmark Fetching

Severity: medium (CVSS 4.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-05 · updated 2026-10-06
Weakness: CWE-367

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.

Affected products

TryGhost Ghost: from 6.54.1, < 6.65.0

References

https://github.com/TryGhost/Ghost/commit/3f8594eb53de883ac017545c358f59039cb152de
https://github.com/TryGhost/Ghost/pull/30918
https://github.com/TryGhost/Ghost/releases/tag/v6.65.0
https://github.com/TryGhost/Ghost/security/advisories/GHSA-322m-ff4g-9vx9

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