CVE-2026-25552 Ghost CLI < 1.30.1 IP Spoofing via X-Forwarded-For Header
Attackers can bypass rate-limiting controls in Ghost CLI by spoofing IP addresses via the X-Forwarded-For header in misconfigured Nginx setups.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-25552?
CVE-2026-25552 is a medium-severity vulnerability in TryGhost Ghost-CLI, published on 31 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Ghost CLI before 1.30.1 contains an IP spoofing vulnerability that allows unauthenticated remote attackers to bypass rate-limiting controls by manipulating the X-Forwarded-For header through a misconfigured Nginx configuration. Attackers can append attacker-controlled values to the header chain using the $proxy_add_x_forwarded_for directive to present an arbitrary IP address, circumventing Ghost's rate-limiting mechanisms on self-hosted instances.
Weakness: CWE-348
Which versions are affected by CVE-2026-25552?
1 open source package ship an affected version, including ghost.
| Package | Affected | Fixed in |
|---|---|---|
ghost Bitnami | All versions | 1.30.1 |
How do I fix CVE-2026-25552?
Upgrade ghost to 1.30.1 or later.
Is CVE-2026-25552 being exploited?
There is no known exploitation of CVE-2026-25552 in the wild and no public exploit code.
Sources
Also known as BIT-ghost-2026-25552, GHSA-wjx2-9fpq-8997.