Summary
Ghost: Invite Token Disclosure in Ghost Admin API
Advisory details
Impact
Staff users with permission to view staff invites were able to discover the secret token of pending invites, including invites for roles with higher privileges than their own. This could allow a staff user to escalate their privileges by accepting a pending invite.
Vulnerable versions
This vulnerability is present in Ghost from v4.39.0 up to v6.64.0.
Patches
v6.64.0 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 CoryRoo, Pedro Pinho, and Nhat Anh Vu 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-v6q3-xqxm-6f5v
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-v6q3-xqxm-6f5v
- https://nvd.nist.gov/vuln/detail/CVE-2026-105675
- https://github.com/TryGhost/Ghost/pull/30760
- https://github.com/TryGhost/Ghost/commit/4fb587e4d49667f929b87f7d6a873ae5e9cc087f
- https://github.com/TryGhost/Ghost/releases/tag/v6.64.0
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