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CVE-2026-53945

CVE-2026-53945 · Ghost: Server-side request forgery via DNS rebinding in external request handling

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 4.0 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • ghost

    Versions
    • >= 6.0.9, < 6.21.1: Affected

    No fix published

  • ghost npm

    Affected ranges
    • SEMVER: ≥ 6.0.9, < 6.21.2

    Update to 6.21.2

Original sources

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