SSRF in Tryghost Ghost
CVE-2026-103291
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/TryGhost/Ghost/security/advisories/GHSA-rrq6-9r3c-7w26 (vendor-advisory)
- www.vulncheck.com/advisories/ghost-3.20.2-before-6.51.0-ssrf-via-image-size-fet… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-103291?
- CVE-2026-103291 is a medium-severity vulnerability in Tryghost Ghost, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.4/10. Published 2026-10-01.
- How severe is CVE-2026-103291?
- Medium severity. CVSS v3 base score is 6.4 out of 10.