CVE-2026-70590 MEDIUM

CVE-2026-70590: Ghost: Blind Password Hash Disclosure in Ghost Admin API

Vendor Tryghost
Product Ghost
Weakness CWE-200 · Info exposure
Published August 4, 2026
Last update August 4, 2026

CVSS base score

4.8/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction Required
Confidentiality Low
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 4, 2026 CVE published

Related vulnerabilities

04Related CVE