SSRF in Tryghost Ghost
CVE-2026-70591
Ghost is a Node.js content management system. From 0.10.0 until 6.54.1, a Server-Side Request Forgery in Ghost Admin image fetching allowed any staff-level user to perform a blind HTTP GET request against internal hosts. No output was returned, but this could have been used to probe open ports on internal hosts. This issue is fixed in version 6.54.1.
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.002 (13.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N.
Affected products
- Tryghost Ghost — versions >= 0.10.0, < 6.54.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-70591?
- CVE-2026-70591 is a medium-severity vulnerability in Tryghost Ghost, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.1/10. Published 2026-08-04.
- How severe is CVE-2026-70591?
- Medium severity. CVSS v3 base score is 4.1 out of 10.