CVE-2026-103286 Ghost 2.21.0 before 6.56.0 Privilege Escalation via Notifications
Low-privilege staff users can escalate to higher-privilege roles via the notifications system in Ghost CMS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-103286?
CVE-2026-103286 is a high-severity vulnerability in TryGhost Ghost, published on 1 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Ghost versions from 2.21.0 before 6.56.0 contain a privilege escalation vulnerability in the notifications system that allows low-privilege staff users to escalate to higher-privilege staff roles. Attackers with low-privilege staff access can exploit the notifications system to gain elevated privileges without proper authorization checks.
Weakness: CWE-266
Which versions are affected by CVE-2026-103286?
1 open source package ship an affected version, including ghost.
| Package | Affected | Fixed in |
|---|---|---|
ghost Bitnami | From 2.21.0 | 6.56.0 |
How do I fix CVE-2026-103286?
Upgrade ghost to 6.56.0 or later.
Is CVE-2026-103286 being exploited?
There is no known exploitation of CVE-2026-103286 in the wild and no public exploit code.
Sources
Also known as BIT-ghost-2026-103286, GHSA-pv24-pfvg-vr83, GHSA-wmw5-238j-rqvj, MINI-j676-v342-f468.