CVE-2026-70590: Tryghost Ghost

Medium severity, CVSS 4.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Ghost is a Node.js content management system. Prior to 6.54.1, any staff-level user was able to leak the hashed passwords of other staff users through the Ghost Admin API. An offline password-guessing attack against the hashes could lead to account takeover if successful, but Device Verification should have prevented an attacker from logging in with a recovered password. Depending on the database used, leaked hashes may not have had the correct casing for all characters, increasing the difficulty of a password-guessing attack. This issue is fixed in version 6.54.1.

Affected products

• Tryghost Ghost: before 6.54.1 (fixed in 6.54.1)

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