CVE-2026-12295
Received Received - Intake
DOM Navigation Sandbox Escape in Firefox

Publication date: 2026-06-16

Last updated on: 2026-06-16

Assigner: Mozilla Corporation

Description
Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, and Firefox ESR 115.37.
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Meta Information
Published
2026-06-16
Last Modified
2026-06-16
Generated
2026-06-16
AI Q&A
2026-06-16
EPSS Evaluated
N/A
NVD
CVE-2026-12295
EUVD
EUVD-2026-37086
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
mozilla firefox 152
mozilla firefox_esr 140.12
mozilla firefox_esr 115.37
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a sandbox escape in the DOM Navigation component of Mozilla Firefox. It allows an attacker to break out of the browser's security sandbox, potentially enabling unauthorized actions or access beyond the intended restrictions.

The issue was addressed and fixed in Firefox versions 152, Firefox ESR 140.12, and Firefox ESR 115.37.

Impact Analysis

Exploitation of this sandbox escape vulnerability could allow attackers to execute code or perform actions outside the browser's restricted environment, potentially leading to unauthorized access to system resources or sensitive information.

Mitigation Strategies

To mitigate this vulnerability, update Firefox to version 152 or later, or update Firefox ESR to version 140.12 or later, or ESR 115.37 or later.

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