CVE-2026-104418 Ghost from 6.10.3 before 6.64.0 RCE via Theme Translation Files
Authenticated administrators can execute arbitrary code on Ghost servers by uploading malicious theme translation files.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-104418?
CVE-2026-104418 is a high-severity code injection vulnerability in TryGhost Ghost, published on 2 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Ghost from 6.10.3 before 6.64.0 contains a remote code execution vulnerability that allows authenticated administrators to run code by abusing theme translation file loading. Attackers with administrator access can upload a crafted theme containing malicious translation files to execute arbitrary code on the Ghost server.
Weakness: CWE-22
Which versions are affected by CVE-2026-104418?
How do I fix CVE-2026-104418?
Upgrade to a fixed version.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-104418 being exploited?
There is no known exploitation of CVE-2026-104418 in the wild and no public exploit code.
Sources
Also known as GHSA-5pc5-4pc7-5x44, MINI-f2fm-p2q9-vfgr.