CVE-2026-117962
Received Received - Intake

Firefox Sandbox Escape via Storage Quota Manager Boundary Condition

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: Mozilla Corporation

Description
Sandbox escape due to incorrect boundary conditions in the Storage: Quota Manager component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.

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Meta Information

Published
2026-10-27
Last Modified
2026-10-27
Generated
2026-10-27
AI Q&A
2026-10-27
EPSS Evaluated
N/A
NVD
CVE-2026-117962
EUVD
EUVD-2026-110993

Affected Vendors & Products

Currently, no data is known.

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability allows an attacker to escape the sandbox due to incorrect boundary conditions in the Storage: Quota Manager component of Firefox. It was patched in Firefox 159 and Firefox ESR 153.6.

Impact Analysis

An attacker could exploit this to break out of the sandbox, potentially gaining unauthorized access to system resources or sensitive data on your device if you are using an affected version of Firefox.

Mitigation Strategies

Update Firefox to version 159 or later and Firefox ESR to version 153.6 or later to address the sandbox escape vulnerability in the Storage: Quota Manager component.

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