What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-04 · updated 2026-10-24
• Weakness: CWE-200

Description

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

References

• https://github.com/TryGhost/Ghost/commit/63c31fad7e473caa62d8fbb4651a04a2a62b5d00
• https://github.com/TryGhost/Ghost/pull/29628
• https://github.com/TryGhost/Ghost/releases/tag/v6.54.1
• https://github.com/TryGhost/Ghost/security/advisories/GHSA-jm22-3w23-5q7w

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