Remote Code Execution in Ghost by TryGhost
CVE-2026-104418

8.6HIGH

Key Information:

Vendor

Tryghost

Status
Ghost
Vendor
CVE Published:
2 October 2026

What is CVE-2026-104418?

Ghost versions prior to 6.64.0 present a serious remote code execution vulnerability affecting authenticated administrators. This flaw allows them to exploit the loading of theme translation files. By uploading a specially crafted theme with malicious translation files, administrators can execute arbitrary code on the Ghost server, potentially compromising the entire environment. It is crucial for affected users to update to the latest version to mitigate any risks associated with this vulnerability.

Affected Version(s)

Ghost 6.10.3 < 6.64.0

Ghost 6.64.0

References

https://github.com/TryGhost/Ghost/security/advisories/GHS...
vendor-advisory
https://www.vulncheck.com/advisories/ghost-from-6.10.3-be...
third-party-advisory

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alemmi
Tomer-PL
msegoviag
.