Excessive CPU Usage Vulnerability in Ghost Node.js CMS
CVE-2026-105645

4.9MEDIUM

Key Information:

Vendor

Tryghost

Status
Ghost
Vendor
CVE Published:
5 October 2026

What is CVE-2026-105645?

Ghost, a widely used Node.js content management system, has a vulnerability that allows crafted requests to the external media inliner, potentially leading to excessive CPU usage. This can render the Ghost server unresponsive, significantly affecting web performance. Exploiting this issue necessitates Administrator access, highlighting the importance of securing administrative credentials. The vulnerability is addressed in version 6.67.0, and users are strongly advised to update their installations.

Affected Version(s)

Ghost >= 5.37.0, < 6.67.0

References

https://github.com/TryGhost/Ghost/security/advisories/GHS...
x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/issues/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

.