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Suggestion detail

Untriaged
Permalink CVE-2026-53944
5.8 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Changed (C)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): None (N)
created 2 months ago Activity log
  • Created suggestion 2 months ago
Ghost: Private IP filtering bypass to make server-side requests to internal services

Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, 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. This vulnerability is fixed in 6.21.1.

Affected products

Ghost
  • ==>= 6.0.9, < 6.21.1

Matching in nixpkgs

pkgs.ghostie

Github notifications in your terminal

  • nixos-unstable -
    • nixos-unstable-small 0.3.1
  • nixos-26.05 -
    • nixos-26.05-small 0.3.1

pkgs.ghostty

Fast, native, feature-rich terminal emulator pushing modern features

  • nixos-unstable -
    • nixos-unstable-small 1.3.1
  • nixos-26.05 -
    • nixos-26.05-small 1.3.1

pkgs.ghost-cli

CLI Tool for installing & updating Ghost

  • nixos-unstable -
  • nixos-26.05 -

pkgs.ghostfolio

Open Source Wealth Management Software

  • nixos-unstable -
  • nixos-26.05 -

pkgs.ghostunnel

TLS proxy with mutual authentication support for securing non-TLS backend applications

  • nixos-unstable -
    • nixos-unstable-small 1.8.4
  • nixos-26.05 -
    • nixos-26.05-small 1.8.4

pkgs.ghostscript

PostScript interpreter (mainline version)

  • nixos-unstable -
  • nixos-26.05 -

pkgs.ghosttohugo

Convert Ghost export to Hugo posts

  • nixos-unstable -
    • nixos-unstable-small 0.5.3
  • nixos-26.05 -
    • nixos-26.05-small 0.5.3

pkgs.ghostty-bin

Fast, native, feature-rich terminal emulator pushing modern features

  • nixos-unstable -
    • nixos-unstable-small 1.3.1
  • nixos-26.05 -
    • nixos-26.05-small 1.3.1

pkgs.ghostscriptX

PostScript interpreter (mainline version)

  • nixos-unstable -
  • nixos-26.05 -

pkgs.ghost-complete

Terminal-native autocomplete engine using PTY proxying for macOS terminals

  • nixos-unstable -
  • nixos-26.05 -
    • nixos-26.05-small 0.9.1