Vulnerability · Published Aug 4, 2026 · Assigned by GitHub_M

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

Medium 4.8

In plain English

A medium-severity information exposure in Ghost from TryGhost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.8Medium

Exploit odds (30 days)0.3%top 74.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	ghost	6.54.1	GHSA-jm22-3w23-5q7w

Affected products (as reported)

Vendor	Product	Versions
TryGhost	Ghost	< 6.54.1

Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:N

References

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