THREAT OPS › Threat News › [GHSA] GHSA-wvp2-4qqp-4h3r (medium) — Ghost: Private IP filtering bypass to make server-side requests to internal services
[GHSA] GHSA-wvp2-4qqp-4h3r (medium) — Ghost: Private IP filtering bypass to make server-side requests to internal services
GHSA-wvp2-4qqp-4h3r Severity: medium CVE: CVE-2026-53944
Ghost: Private IP filtering bypass to make server-side requests to internal services
### Impact
When making an external request, it is possible to bypass the IP filter that ensures the request isn't going to an internal service using an IPv6 literal which maps to a private IPv4 address.
### Vulnerable versions
This vulnerability is pres
Indicators of compromise
- CVE-2026-53944cve
- https://hub.docker.com/_/ghosturl
- https://docs.ghost.org/install/docker#updating-ghosturl
- https://docs.ghost.org/updateurl
- security@ghost.orgemail
Original source: https://github.com/advisories/GHSA-wvp2-4qqp-4h3r