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CVE-2026-105683: Ghost: Path Traversal Vulnerability in Ghost ImageSize Service

• Severity: low (CVSS 3.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-05 · updated 2026-10-08
• Weakness: CWE-35

Description

Ghost is a Node.js content management system. From 6.14.0 until 6.27.0, an input validation issue may have allowed staff users to access local files outside the intended data storage directories on the server. This issue is fixed in version 6.27.0.

Affected products

• TryGhost Ghost: from 6.14.0, < 6.27.0

References

• https://github.com/TryGhost/Ghost/commit/770d438fd9d352bbfccbe81dd890580a1d3fd6f0
• https://github.com/TryGhost/Ghost/pull/27217
• https://github.com/TryGhost/Ghost/releases/tag/v6.27.0
• https://github.com/TryGhost/Ghost/security/advisories/GHSA-83rp-q473-j88c

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