CVE-2026-103287: Ghost SSRF Vulnerability in Webhook Trigger
Summary
CVE-2026-103287: Ghost: Server-Side Request Forgery in Webhook Trigger. Affects ghost versions >= 1.18.0, < 6.27.0. Fixed in 6.27.0. How to fix ↓
Also tracked for
The same CVE-2026-103287 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
Ghost is a popular open-source publishing platform designed for creating and managing online content. It is built on Node.js and offers a user-friendly interface for bloggers and publishers. The platform supports various features, including themes, plugins, and webhooks for integrations. However, a recent vulnerability has been identified that affects versions from 1.18.0 to 6.27.0, allowing unauthorized access to internal hosts through server-side request forgery (SSRF).
Vulnerability Detail
The vulnerability arises from the webhooks feature in Ghost, which allows staff users to send requests to internal servers. This SSRF vulnerability can be exploited by an attacker to probe internal hosts, potentially leading to unauthorized access to sensitive information or services. The issue is particularly concerning as it can be exploited by authenticated users, increasing the risk of internal network exposure.
How To Fix
Latest published version: 6.72.0 as of 22 Oct 2026
npm install ghost@6.72.0Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
6.27.0
This is the first release that contains the fix.
npm install ghost@6.27.0Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users can restrict access to the webhooks feature to trusted staff users only, minimizing the risk of exploitation until the update can be applied.
Conclusion
The SSRF vulnerability in Ghost's webhook feature poses a significant risk to users running affected versions. It is crucial to update to version 6.27.0 or later to mitigate this risk. Users should also consider implementing temporary workarounds to limit exposure until they can apply the necessary updates.
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FAQ
Server-Side Request Forgery (SSRF) is a vulnerability that allows an attacker to send crafted requests from a vulnerable server to internal or external resources, potentially exposing sensitive data.
You can check if your Ghost installation is affected by reviewing the version number. If it is between 1.18.0 and 6.27.0, it is vulnerable.
If you cannot update immediately, restrict access to the webhooks feature to trusted users only as a temporary workaround.
More information can be found in the advisory published by Ghost, which details the vulnerability and its implications.
Vulert is a tool that monitors and alerts in real-time for open-source vulnerabilities in software using just the package-lock.json file. You can check if your application is affected by this vulnerability using the Vulert playground at Vulert Scanner without any signup.
References
Related vulnerabilities
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