Server-side Request Forgery (SSRF) Affecting ghost package, versions >=6.0.9 <6.65.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-GHOST-21693971
- published24 Oct 2026
- disclosed7 Oct 2026
- creditnhattanhh
Introduced: 7 Oct 2026
NewCVE-2026-105648 (opens in a new tab)How to fix?
Upgrade ghost to version 6.65.0 or higher.
Overview
ghost is a publishing platform
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the IP address validation logic in request-external.js, which fails to correctly classify certain IPv6 transition addresses (IPv4-compatible ::/96, IPv4-mapped ::ffff:0:0/96, IPv4-translated ::ffff:0:0:0/96, NAT64 64:ff9b::/96, and 6to4 2002::/16 prefixes) as private or reserved. An attacker can supply a URL whose hostname resolves to one of these transition-format addresses, causing the private-IP check to pass and allowing outbound requests to internal network resources.