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Untriaged
Permalink CVE-2026-12312
7.5 HIGH
  • 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): Unchanged (U)
  • Confidentiality (C): High (H)
  • Integrity (I): None (N)
  • 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): High (H)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): None (N)
created 3 days, 13 hours ago Activity log
  • Created suggestion 3 days, 13 hours ago
Memory safety bug fixed in Thunderbird 152

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

Affected products

Firefox
  • =<140.*
  • =<*
Thunderbird
  • =<140.*
  • =<*

Matching in nixpkgs

pkgs.firefox_decrypt

Tool to extract passwords from profiles of Mozilla Firefox and derivates

  • nixos-unstable 1.1.3
    • nixpkgs-unstable 1.1.3
    • nixos-unstable-small 1.1.3
  • nixos-26.05 -
    • nixos-26.05-small 1.1.3
    • nixpkgs-26.05-darwin 1.1.3

pkgs.thunderbird-cli

Low-level CLI to manage Mozilla Thunderbird email from the shell

  • nixos-unstable 1.0.2
    • nixpkgs-unstable 1.0.2
    • nixos-unstable-small 1.0.2
  • nixos-26.05 -
    • nixos-26.05-small 1.0.2
    • nixpkgs-26.05-darwin 1.0.2

pkgs.thunderbird-mcp

MCP server for Thunderbird - enables AI assistants to access email, contacts, and calendars

  • nixos-unstable 0.5.0
    • nixpkgs-unstable 0.6.0
    • nixos-unstable-small 0.6.0
  • nixos-26.05 -
    • nixos-26.05-small 0.5.0
    • nixpkgs-26.05-darwin 0.5.0

pkgs.firefox-sync-client

Commandline-utility to list/view/edit/delete entries in a firefox-sync account

  • nixos-unstable 1.9.0
    • nixpkgs-unstable 1.9.0
    • nixos-unstable-small 1.9.0
  • nixos-26.05 -
    • nixos-26.05-small 1.9.0
    • nixpkgs-26.05-darwin 1.9.0

pkgs.pkgsRocm.firefoxpwa

Tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox (native component)

pkgs.thunderbird-cli-mcp

MCP server that gives full access to your email through Mozilla Thunderbird

  • nixos-unstable 1.0.2
    • nixpkgs-unstable 1.0.2
    • nixos-unstable-small 1.0.2
  • nixos-26.05 -
    • nixos-26.05-small 1.0.2
    • nixpkgs-26.05-darwin 1.0.2

pkgs.thunderbird-cli-bridge

HTTP/WebSocket bridge daemon between thunderbird-cli (or any HTTP client) and the Thunderbird-cli WebExtension. Stateless proxy, localhost-only.

  • nixos-unstable 1.0.2
    • nixpkgs-unstable 1.0.2
    • nixos-unstable-small 1.0.2
  • nixos-26.05 -
    • nixos-26.05-small 1.0.2
    • nixpkgs-26.05-darwin 1.0.2

pkgs.gnomeExtensions.firefox-profiles

Easily launch Firefox with your favorite profile right from the indicator menu!

  • nixos-unstable 7
    • nixpkgs-unstable 7
    • nixos-unstable-small 7
  • nixos-26.05 -
    • nixos-26.05-small 7
    • nixpkgs-26.05-darwin 7

pkgs.gnomeExtensions.firefox-pip-always-on-top

Automatically sets Picture-in-Picture windows to always be on top and visible on all workspaces

  • nixos-unstable 4
    • nixpkgs-unstable 4
    • nixos-unstable-small 4
  • nixos-26.05 -
    • nixos-26.05-small 4
    • nixpkgs-26.05-darwin 4

pkgs.gnomeExtensions.pip-alwaysontop-for-firefox

Enable Picture-in-Picture(PIP) mode to always be on for Firefox in Gnome.

  • nixos-unstable 1
    • nixpkgs-unstable 1
    • nixos-unstable-small 1
  • nixos-26.05 -
    • nixos-26.05-small 1
    • nixpkgs-26.05-darwin 1

Package maintainers