CVE-2026-70595: 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…

PriorityP421medium4CVSS 3.1

AVNACHPRNUINSCCLINAN

EPSS

0.28%

18.3th percentile

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

2 ranges

Vendor	Product	Version range	Fixed in
ghost	ghost	>= 6.26.0 < 6.54.1	6.54.1
tryghost	ghost	—	—

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