CVE-2026-103291

Medium

Description

Ghost versions from 3.20.2 before 6.51.0 contain a server-side request forgery vulnerability in image dimension refetching that allows authenticated staff users to trigger outbound HTTP requests to arbitrary URLs. Attackers can point image cards at attacker-controlled hosts or internal network endpoints to access metadata services and internal resources unavailable from the public internet.

SeverityMedium

CVSS6.4

Exploit probability—

Product

Ghost

PublishedOct 1, 2026

First seenOct 1, 2026

Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update

TryGhost Ghost6.51.0 or later

Vendor advisories

github.com/TryGhost/Ghost/security/advisories/GHSA-rrq6-9r3c-7w26

Affected products

Product	Affected versions	Fixed in
TryGhost Ghost	3.20.2 ≤ v < 6.51.0	6.51.0

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