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CVE-2026-12295

Sandbox escape in the DOM: Navigation component

Published
Last modified
published
Not listed in CISA KEV
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Mozilla Firefox

    Version range not reported

  • Mozilla Thunderbird

    Version range not reported

References 7

bugzilla.mozilla.org

mozilla.org

GitHub · SneakyNachos/CVE-2026-12295-UXXS-in-my-wasm