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CVE-2026-103287BIT-ghost-2026-103287BIT-ghost-2026-105682CVE-2026-105682GHSA-354h-gmhv-mr9c

Ghost 1.18.0 before 6.27.0 Server-Side Request Forgery via Webhook

TryGhost GhostnpmApplications & CMS
Open in ThreatlineRecord JSON
CVSS
5.1Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.20%Chance of exploitation activity in the next 30 days, higher than 9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in6.27.0Fixed versionCVE List
Published1 Oct 2026Updated 13 Oct 2026CVE List

What fixes it

  • 6.27.0GhostCVE List
  • 6.27.0ghost, npmOSVnpm install ghost@6.27.0

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Ghost versions 1.18.0 before 6.27.0 contain a server-side request forgery vulnerability in the webhooks feature that allows staff users to probe internal hosts. Attackers with staff privileges can craft webhook requests to access internal network resources from the Ghost server.

Text from CVE List

Affected versions 2

  • Ghostaffected: 1.18.0 before 6.27.0CVE List
  • ghost, npmfrom 1.18.0, fixed in 6.27.0OSV

References 2