CVE-2026-53945

medium

Description

Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, Ghost’s private-IP check for outbound HTTP requests could be bypassed via DNS rebinding, allowing an attacker to coerce the Ghost server into reaching hosts on internal networks through features that issue external fetches. This vulnerability is fixed in 6.21.1.

References

https://github.com/TryGhost/Ghost/security/advisories/GHSA-ch52-px8q-f22j

Details

Source: Mitre, NVD

Published: 2026-06-24

Updated: 2026-06-25

Risk Information

CVSS v2

Base Score: 2.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:P/A:N

Severity: Low

CVSS v3

Base Score: 4

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00025