Authorization bypass in Ghost comments feature
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
Ghost, a Node.js content management system, is affected from 5.9.0 before 6.44.1. An input validation issue (CWE-943) lets a member with low privileges access comments they are not authorized to view. The attacker needs a valid member account, and the impact is high confidentiality loss.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Ghost is a Node.js content management system. From 5.9.0 until 6.44.1, an input validation issue allowed members to access comments they were not authorized to access. This issue is fixed in version 6.44.1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TryGhost | Ghost | 5.9.0 to before 6.44.1 | 6.44.1 | Patch available | CNA |
| — | ghost (npm) | 5.9.0 to before 6.44.1 | 6.44.1 | Patch available | GHSA-6q6j-f24j-p477 |
- Ghost VendorTryGhost Affected 5.9.0 to before 6.44.1 Fixed in 6.44.1 Patch available CNA
- ghost (npm) Vendor— Affected 5.9.0 to before 6.44.1 Fixed in 6.44.1 Patch available GHSA-6q6j-f24j-p477
Remediation
Upgrade Ghost to version 6.44.1, which is the fixed version for the npm package ghost.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Ghost (TryGhost) Fixed in 6.44.1
- Fix · GHSA-6q6j-f24j-p477 ghost (npm) Fixed in 6.44.1 Advisory →
Timeline
- 2026-10-05 Threatist record created from CVE-2026-105681
- 2026-10-06 CISA SSVC decision points changed
- 2026-10-06 Priority changed: MEDIUM → LOW
- 2026-10-07 Alias added: GHSA-6q6j-f24j-p477
- 2026-10-07 Fix available: npm/[email protected] · GHSA-6q6j-f24j-p477
- 2026-10-07 CVSS score added · GHSA-6q6j-f24j-p477
- 2026-10-07 Weakness changed · GHSA-6q6j-f24j-p477
- 2026-10-07 6 new references · GHSA-6q6j-f24j-p477
References
More TryGhost vulnerabilities
- TI-2026-21459 Ghost has a SQL Injection in its Content API CVSS 3.1CRITICAL 9.4
- TI-2022-10277 An arbitrary file upload vulnerability in the file upload module of Ghost v4.39.0 allows… CVSS 3.1CRITICAL 9.8
- TI-2024-22785 Ghost through 5.85.1 allows remote attackers to bypass an authentication rate-limit… CVSS 3.1CRITICAL 9.1
- TI-2023-14843 Ghost vulnerable to disclosure of private API fields CVSS 3.1HIGH 7.5
- TI-2025-09049 Ghost 6.0.6 - SSRF via oEmbed Bookmark CVSS 4.0MEDIUM 6.1
- TI-2023-20918 Arbitrary file read via symlinks in Ghost CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-105681 · CVE Program
- CVE-2026-105681 · NVD
- FIRST EPSS
- GHSA-6q6j-f24j-p477 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences