CVE-2026-53945 — Ghost: Server-side request forgery via DNS rebinding in external request handling
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 attac…
Published: 2026-06-24 · CVSS: 4.0 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7