Medium severity · published Aug 4, 2026
CVE-2026-70594
Ghost: Session Fixation in Ghost Admin
6.7
CVSS
0.2%
EPSS
No
On KEV
Description
Ghost is a Node.js content management system. From 2.2.0 until 6.54.1, Ghost Admin did not invalidate existing sessions on login which could have allowed for session fixation attacks. Successful exploitation would have required another vulnerability on the same domain where Ghost Admin was hosted. This issue is fixed in version 6.54.1.
CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
Attack vector
Adjacent
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GH
Ghost · TryGhost
>= 2.2.0, < 6.54.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-70594
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-70594
github.com
https://github.com/TryGhost/Ghost/commit/6b1c85c30dd0bacb4d5ffe64fc675ac9342d800c
github.com
https://github.com/TryGhost/Ghost/pull/29634
github.com
https://github.com/TryGhost/Ghost/releases/tag/v6.54.1
github.com
https://github.com/TryGhost/Ghost/security/advisories/GHSA-7mpp-r37j-x5wh
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