Ghost: Blind Password Hash Disclosure in Ghost Admin API
Impact
Any staff-level user was able to leak the hashed passwords of other staff users. 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.
Vulnerable versions
This vulnerability is present in Ghost versions v6.54.0 and earlier.
Patches
v6.54.1 contains a fix for this issue.
How to update
For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here.
If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here.
Workarounds
If upgrading immediately is not possible, ensure all staff users have Multi-factor Authentication (MFA) enabled. This will help prevent an attacker from logging in with any passwords that are successfully recovered from the leaked hashes.
References
Ghost thanks Chapman Schleiss for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email us at security@ghost.org.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | ghost | < 6.54.1 | 6.54.1 |
Referencias
- Vector CVSS
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:N- Debilidad (CWE)
CWE-200- Plataforma
- npm
- Paquete
ghost- Publicada
- 04.08.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-jm22-3w23-5q7w - CC BY 4.0
Historial de vulnerabilidades: ghost
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 61
- Primera → última
- 04.2021 10.2026
- Sin corrección
- 3
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 4
- Alta 16
- Media 38
- Baja 3
Divulgaciones por año
- 2021: 5
- 2022: 4
- 2023: 3
- 2024: 3
- 2025: 1
- 2026: 45
-
Ghost: Blind Password Hash Disclosure in Ghost Admin API esta entrada
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