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CVE-2026-117868EUVD-2026-111039GHSA-VPF8-8MC8-7FJ2

Sandbox escape in the DOM: Networking component

Published
Last modified
published
Not listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub

Summary

This vulnerability affects Mozilla Firefox, including its Extended Support Release (ESR) editions, and could allow malicious web content to escape the browser's sandbox protections. Successful exploitation could let an attacker reach resources outside the restricted browser environment, potentially compromising the user's system.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

Sandbox escape in the DOM: Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. Record last updated

Affected versions

  • Mozilla Firefox

    Version range not reported

  • Mozilla Thunderbird

    Version range not reported

References 6

bugzilla.mozilla.org

mozilla.org