Authentication Bypass in Ghost CMS Affects User Access Control
CVE-2026-22595

8.1HIGH

Key Information:

Vendor

Tryghost

Status
Ghost
Vendor
CVE Published:
10 January 2026

What is CVE-2026-22595?

Ghost, a popular Node.js content management system, has a vulnerability that affects specific versions, allowing unauthorized access to endpoints meant only for Staff Session authentication. This issue arises from the way Ghost handles Staff Token authentication, potentially granting external systems authenticated as Admin or Owner users inappropriate access. The vulnerability has been addressed in subsequent updates, and users are strongly advised to upgrade to versions 5.130.6 and 6.11.0 or later to ensure system security.

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Deploy the Patch

Affected Version(s)

Ghost >= 6.0.0, < 6.11.0 < 6.0.0, 6.11.0

Ghost >= 5.121.0, < 5.130.6 < 5.121.0, 5.130.6

References

https://github.com/TryGhost/Ghost/security/advisories/GHS...
x_refsource_CONFIRM
https://github.com/TryGhost/Ghost/commit/9513d2a35c210671...
x_refsource_MISC
https://github.com/TryGhost/Ghost/commit/c3017f81a5387b25...
x_refsource_MISC

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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