# CVE-2026-105642: Ghost remote code execution via bookmark card images

Source: https://junglewise.ai/threats/cve-2026-105642-ghost-is-a-node-js-content-management-system-from-6-56-0-until-6  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-05. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-105642 · Severity: high · CVSS 8.8 · Published 2026-10-05

Ghost is a Node.js content management system used to build and publish websites and newsletters. An image processing vulnerability in Ghost versions 6.56.0 to 6.66.0 allows any staff member, including low-privilege contributors, to create a bookmark card pointing to an attacker's website. When Ghost processes the website's metadata, it executes arbitrary commands on the server, giving attackers complete control over the Ghost instance and its underlying system.

Technologies: [ghost (npm)](https://junglewise.ai/threats/technologies/ghost), [TryGhost Ghost](https://junglewise.ai/threats/technologies/tryghost-ghost). Vendors: [npm](https://junglewise.ai/threats/vendors/npm), [TryGhost](https://junglewise.ai/threats/vendors/tryghost).

## Quick answers

**Is CVE-2026-105642 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-105642 being exploited in the wild.

**How severe is CVE-2026-105642?** High severity, with a CVSS score of 8.8, published 5 October 2026.

**Which products and versions are affected?** ghost (npm) >= 6.56.0, < 6.67.0, SEMVER:introduced=6.56.0,fixed=6.67.0; TryGhost Ghost 6.56.0 to 6.66.0.

**Is there a fix for CVE-2026-105642?** Yes. ghost (npm): upgrade to 6.67.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-105642 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-105642?** Check whether you run ghost (npm) or TryGhost Ghost at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- ghost (npm): upgrade to 6.67.0 or later

  ```sh
  npm install ghost@6.67.0
  ```


## Technical details

An SVG handling vulnerability in a bundled image processing library allows code injection through malicious bookmark card metadata. A staff user (no network access required) can trigger the vulnerability by creating a bookmark card for an attacker-controlled website; the server processes the website's image metadata without proper sanitization, resulting in remote code execution. The fix is available in version 6.67.0.

## Affected products

- TryGhost Ghost 6.56.0 to 6.66.0

## Identifiers

- CVE-2026-105642
- GHSA-788w-68h3-cvxp

## Timeline

- 2026-10-01: disclosed
- 2026-10-05: patched
- 2026-10-05: advisory

## References

- [https://github.com/TryGhost/Ghost/security/advisories/GHSA-788w-68h3-cvxp](https://github.com/TryGhost/Ghost/security/advisories/GHSA-788w-68h3-cvxp)

## Related threats

- [Ghost: Path Traversal Vulnerability in Ghost ImageSize Service](https://junglewise.ai/threats/cve-2026-105683-ghost-is-a-node-js-content-management-system-from-6-14-0-until-6)
- [Ghost: Server-Side Request Forgery in Webhook Trigger](https://junglewise.ai/threats/cve-2026-105682-ghost-is-a-node-js-content-management-system-from-1-18-0-until-6)
- [Ghost input validation bypass in comments access control](https://junglewise.ai/threats/cve-2026-105681-ghost-is-a-node-js-content-management-system-from-5-9-0-until-6)
- [Ghost authorization bypass in post deletion](https://junglewise.ai/threats/cve-2026-105680-ghost-is-a-node-js-content-management-system-from-5-81-0-until-6)
- [Ghost content type validation bypass in local file storage](https://junglewise.ai/threats/cve-2026-105679-ghost-is-a-node-js-content-management-system-from-6-22-1-until-6)