What’s Vulnerable › Vulnerabilities
CVE-2026-53945: Ghost: Server-side request forgery via DNS rebinding in external request handling
- Severity: medium (CVSS 4.0 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-24 · updated 2026-10-25
- Weakness: CWE-367
Description
Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, Ghost’s private-IP check for outbound HTTP requests could be bypassed via DNS rebinding, allowing an attacker to coerce the Ghost server into reaching hosts on internal networks through features that issue external fetches. This vulnerability is fixed in 6.21.1.
Affected products
- TryGhost Ghost: from 6.0.9, < 6.21.1
References
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