A AegiFlow
MEDIUMCVSS 4.0EPSS 0.1%

CVE-2026-53945

CVE-2026-53945 updated by NVD

Published
2026-08-04
Modified
2026-10-27
EPSS percentile
4%
Sources
github-advisory, nvd

Summary

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.

Affected packages

EcosystemPackageAffected versionsFixed versions
npmghost—6.21.2

Remediation: Upgrade to 6.21.2 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.