Ghost: Blind Password Hash Disclosure in Ghost Admin API

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-70590
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-04 22:17:16 UTC
Updated2026-08-04 22:17:16 UTC
DescriptionGhost 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.

Risk And Classification

Primary CVSS: v3.1 4.8 MEDIUM from [email protected]

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

Problem Types: CWE-200 | CWE-200 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:N
3.1CNADECLARED4.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA TryGhost Ghost affected < 6.54.1 Not specified

References

ReferenceSourceLinkTags
github.com/TryGhost/Ghost/releases/tag/v6.54.1 [email protected] github.com
github.com/TryGhost/Ghost/security/advisories/GHSA-jm22-3w23-5q7w [email protected] github.com
github.com/TryGhost/Ghost/pull/29628 [email protected] github.com
github.com/TryGhost/Ghost/commit/63c31fad7e473caa62d8fbb4651a04a2a62b5d00 [email protected] github.com
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