Denial of Service Vulnerability in Ghost CMS by TryGhost
CVE-2026-105646

4.9MEDIUM

Key Information:

Vendor

Tryghost

Status
Ghost
Vendor
CVE Published:
5 October 2026

What is CVE-2026-105646?

Ghost, a Node.js content management system, is affected by a vulnerability that allows an attacker with Administrator access to exploit crafted content import files. This exploit can result in excessive CPU usage, rendering the Ghost server unresponsive. The issue is resolved in version 6.67.0, encouraging users to upgrade to mitigate potential disruptions.

Affected Version(s)

Ghost >= 4.0.0, < 6.67.0

References

https://github.com/TryGhost/Ghost/security/advisories/GHS...
x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/pull/31058
x_refsource_MISC
https://github.com/TryGhost/Ghost/commit/88ae6d6d56f8a239...
x_refsource_MISC

CVSS V3.1

Score:
4.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.