medium

CVE-2026-70594

npm · ghost

Summary

Ghost: Session Fixation in Ghost Admin

Severity
medium
CVSS
6.7
EPSS
0.2% (p15)
CWE
CWE-384
Also known as
GHSA-7mpp-r37j-x5wh
Published
2026-08-04
Updated
2026-08-04

Advisory details

Impact

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.

Vulnerable versions

This vulnerability is present in Ghost from v2.2.0 to v6.54.0.

Patches

v6.54.1 contains a fix for this issue.

How to update

For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here.

If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here.

References

Ghost thanks meifukun for disclosing this vulnerability responsibly.

For more information

If you have any questions or comments about this advisory, email Ghost at security@ghost.org.

References

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.