Summary
Ghost: Authorization Bypass in Comments Feature
Advisory details
Impact
An input validation issue allowed members to access comments they were not authorized to access.
Vulnerable versions
This vulnerability is present in Ghost from v5.9.0 up to v6.44.1.
Patches
v6.44.1 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 Himanshu Anand (@anand_himanshu) for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email us at security@ghost.org.
References
- https://github.com/advisories/GHSA-6q6j-f24j-p477
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-6q6j-f24j-p477
- https://nvd.nist.gov/vuln/detail/CVE-2026-105681
- https://github.com/TryGhost/Ghost/pull/28297
- https://github.com/TryGhost/Ghost/commit/405c2623ff9060295d4a87d3a0eb4ef766c8d2d3
- https://github.com/TryGhost/Ghost/releases/tag/v6.44.1
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