Ghost: Blind Password Hash Disclosure in Ghost Admin API
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TryGhost | Ghost | before 6.54.1 | 6.54.1 | Patch available | CNA |
| — | ghost (npm) | before 6.54.1 | 6.54.1 | Patch available | GHSA-jm22-3w23-5q7w |
- Ghost VendorTryGhost Affected before 6.54.1 Fixed in 6.54.1 Patch available CNA
- ghost (npm) Vendor— Affected before 6.54.1 Fixed in 6.54.1 Patch available GHSA-jm22-3w23-5q7w
Remediation
- Fix · CNA Ghost (TryGhost) Fixed in 6.54.1
- Fix · GHSA-jm22-3w23-5q7w ghost (npm) Fixed in 6.54.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-70590
- 2026-10-03 Alias added: GHSA-jm22-3w23-5q7w
References
More TryGhost vulnerabilities
- TI-2026-21459 Ghost has a SQL Injection in its Content API CVSS 3.1CRITICAL 9.4
- TI-2022-10277 An arbitrary file upload vulnerability in the file upload module of Ghost v4.39.0 allows… CVSS 3.1CRITICAL 9.8
- TI-2024-22785 Ghost through 5.85.1 allows remote attackers to bypass an authentication rate-limit… CVSS 3.1CRITICAL 9.1
- TI-2023-14843 Ghost vulnerable to disclosure of private API fields CVSS 3.1HIGH 7.5
- TI-2025-09049 Ghost 6.0.6 - SSRF via oEmbed Bookmark CVSS 4.0MEDIUM 6.1
- TI-2023-20918 Arbitrary file read via symlinks in Ghost CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-70590 · CVE Program
- CVE-2026-70590 · NVD
- FIRST EPSS
- GHSA-jm22-3w23-5q7w · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences