CVE-2026-70594: Tryghost Ghost

Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days.

Ghost is a Node.js content management system. From 2.2.0 until 6.54.1, Ghost Admin did not invalidate existing sessions on login which could have allowed for session fixation attacks. Successful exploitation would have required another vulnerability on the same domain where Ghost Admin was hosted. This issue is fixed in version 6.54.1.

Affected products

• Tryghost Ghost: from 2.2.0, before 6.54.1 (fixed in 6.54.1)

Published 2026-08-04. Last modified 2026-09-08.