CVE-2026-105682: Ghost: Server-Side Request Forgery in Webhook Trigger
Impact
An SSRF vulnerability in the webhooks feature allowed staff users to probe internal hosts from the Ghost server.
Vulnerable versions
This vulnerability is present in Ghost from v1.18.0 up to v6.27.0.
Patches
v6.27.0 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
Ghost thanks 0xkakash1, rooks00, l3tchupkt, Wernerina, krn0@bugcrowdninja.com, and Mohamed Bassia 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 1.18.0 until 6.27.0, an SSRF vulnerability in the webhooks feature allowed staff users to probe internal hosts from the Ghost server. This issue is fixed in version 6.27.0.
— 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 6.27.0 - Upgrade
Upgrade
Ghostto a version that resolves this vulnerability.Fixed in 6.27.0
Event History
Frequently Asked Questions
Who can exploit this issue?
A staff user who can use the Ghost webhooks feature can exploit the issue. The SSRF requests originate from the Ghost server, allowing that user to probe hosts reachable from the server's network.
Which deployments are affected?
Ghost versions from 1.18.0 up to, but not including, 6.27.0 are affected. Version 6.27.0 fixes the issue.
What should be done if upgrading cannot happen immediately?
Limit access to staff accounts and the webhooks feature to trusted users, since staff users can trigger the vulnerable behavior. Restricting the Ghost server's network access can also reduce the internal hosts it can reach.