CVE-2026-105676: Ghost: Path Traversal via Locale Setting
Impact
A vulnerability in how Ghost loads theme translation files allowed an authenticated Administrator to read JSON files outside of the active theme's directory, potentially exposing server configuration secrets.
Vulnerable versions
This vulnerability is present in Ghost from v1.20.0 up to v6.64.0.
Patches
v6.64.0 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.
References
Ghost thanks Miguel Segovia Gil of KPMG and Nguyễn Quốc Đồng for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email us at security@ghost.org.
Other sources
Ghost is a Node.js content management system. From 1.20.0 until 6.64.0, a vulnerability in how Ghost loads theme translation files allowed an authenticated Administrator to read JSON files outside of the active theme's directory, potentially exposing server configuration secrets. This issue is fixed in version 6.64.0.
— NVD
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
npm/ghostto a version that resolves this vulnerability.Fixed in 6.64.0 - Upgrade
Upgrade
Ghostto a version that resolves this vulnerability.Fixed in 6.64.0
Event History
Frequently Asked Questions
Who can exploit this issue?
An authenticated Ghost Administrator can exploit it. The issue requires administrator-level privileges and does not require user interaction.
What systems and versions are affected?
Ghost versions from 1.20.0 through 6.64.0 are affected. The issue is fixed in Ghost version 6.64.0.
What could an attacker access?
An attacker could read JSON files outside the active theme directory through the theme translation-file loading behavior. This could expose server configuration secrets if they are stored in readable JSON files.