Ghost: Session Fixation in Ghost Admin

published 2026-08-04 3 mo ago modified 2026-10-24 16 d ago also BIT-ghost-2026-70594 , EUVD-2026-52978 , GHSA-7mpp-r37j-x5wh

cvss: 6.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits: 0; none known

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.

Patch / fix

fixed in 3 links 3

npm ghost 6.54.1
bitnami ghost 6.54.1
ghost ghost 6.54.1

github.com/TryGhost/Ghost@6b1c85c commit
github.com/TryGhost/Ghost#29634 pull request
github.com/TryGhost/Ghost/releases/tag/v6.54.1 release

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 3 mo ago (2026-08-05)

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.7	CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
GitHub	3.1	6.7	CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
OSV	3.1	6.7	CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

Affected packages

ecosystem	package	affected	fixed in
npm	ghost	>=2.2.0, <6.54.1	6.54.1
bitnami	ghost	>=2.2.0, <6.54.1	6.54.1

Affected products

TryGhost Ghost

Classification

Weakness

CWE-384 Session Fixation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary