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Permalink CVE-2026-8958
8.6 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): Changed (C)
  • 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): Changed (C)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): None (N)
created 5 days, 4 hours ago Activity log
  • Created suggestion 5 days, 4 hours ago
Information disclosure, sandbox escape in the Security: Process Sandboxing component

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Affected products

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

Matching in nixpkgs

pkgs.firefoxpwa

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

pkgs.faust2firefox

The faust2firefox script, part of faust functional programming language for realtime audio signal processing

pkgs.firefox_decrypt

Tool to extract passwords from profiles of Mozilla Firefox and derivates

pkgs.thunderbird-cli

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

pkgs.thunderbird-mcp

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

pkgs.firefox-sync-client

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

pkgs.thunderbird-cli-mcp

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

pkgs.firefoxpwa-unwrapped

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

pkgs.thunderbird-cli-bridge

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

pkgs.gnomeExtensions.firefox-profiles

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

  • nixos-unstable 6
    • nixpkgs-unstable 6
    • nixos-unstable-small 6
  • nixos-25.11 5
    • nixos-25.11-small 5
    • nixpkgs-25.11-darwin 5

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