# CVE-2026-105681: Ghost input validation bypass in comments access control

Source: https://junglewise.ai/threats/cve-2026-105681-ghost-is-a-node-js-content-management-system-from-5-9-0-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-2026-105681 · Severity: medium · CVSS 6.5 · Published 2026-10-05

Ghost is a Node.js-based content management system used to publish blogs and websites. A flaw in comment access validation allowed members to view comments they should not have permission to access. This could expose private or restricted discussions and user data to unauthorized members.

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

## Quick answers

**Is CVE-2026-105681 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-105681 being exploited in the wild.

**How severe is CVE-2026-105681?** Medium severity, with a CVSS score of 6.5, published 5 October 2026.

**Which products and versions are affected?** Ghost 5.9.0 to 6.44.0; ghost (npm) >= 5.9.0, < 6.44.1.

**Is there a fix for CVE-2026-105681?** Yes: fixed in 6.44.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-105681 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-105681?** Check whether you run Ghost or ghost (npm) 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

- Fixed in 6.44.1

## Technical details

An input validation issue in the comments service allowed improper authorization checks, enabling authenticated members to access comment data beyond their granted permissions. The vulnerability affects versions 5.9.0 through 6.44.0; the fix refactored comment lookup handling to properly enforce status-aware authorization filtering in the comments API queries.

## Affected products

- Ghost Ghost 5.9.0 to 6.44.0

## Identifiers

- CVE-2026-105681
- GHSA-6q6j-f24j-p477

## Timeline

- 2026-10-05: disclosed

## References

- [https://github.com/TryGhost/Ghost/commit/405c2623ff9060295d4a87d3a0eb4ef766c8d2d3](https://github.com/TryGhost/Ghost/commit/405c2623ff9060295d4a87d3a0eb4ef766c8d2d3)
- [https://github.com/TryGhost/Ghost/pull/28297](https://github.com/TryGhost/Ghost/pull/28297)

## 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 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)
- [Ghost privilege escalation via user role assignment](https://junglewise.ai/threats/cve-2026-105678-ghost-is-a-node-js-content-management-system-from-0-5-0-until-6)