CVE-2026-105642: Ghost: Remote Code Execution via Bookmark Card Images
Impact
An image processing library bundled with Ghost contained a vulnerability in its SVG handling. Any staff user, including Contributors, could create a bookmark card for an attacker-controlled website, resulting in arbitrary commands being run on the Ghost server.
Vulnerable versions
This vulnerability is present in Ghost from v6.56.0 up to v6.65.0.
Patches
v6.67.0 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
We thank Rafael B. 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 6.56.0 until 6.67.0, an image processing library bundled with Ghost contained a vulnerability in its SVG handling. Any staff user, including Contributors, could create a bookmark card for an attacker-controlled website, resulting in arbitrary commands being run on the Ghost server. This issue is fixed in version 6.67.0.
— 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 6.67.0 - Upgrade
Upgrade
Ghostto a version that resolves this vulnerability.Fixed in 6.67.0
Event History
Frequently Asked Questions
Which Ghost installations are affected?
Ghost versions from 6.56.0 through 6.67.0 are affected. The issue is fixed in version 6.67.0.
Who can exploit this issue?
Any Ghost staff user, including a user with the Contributor role, can exploit it. Exploitation involves creating a bookmark card for an attacker-controlled website.
Does exploitation require direct server access or elevated Ghost permissions?
No. The vulnerability is remotely exploitable and requires no privileges beyond being a Ghost staff user; Contributors are explicitly included.
What is the impact if exploitation succeeds?
Successful exploitation can result in arbitrary commands being executed on the Ghost server, with confidentiality, integrity, and availability all rated high.