CVE-2026-118026
Received Received - Intake

Invalid Pointer in Firefox JavaScript GC

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: Mozilla Corporation

Description
Invalid pointer in the JavaScript: GC component. This vulnerability was fixed in Firefox 159.

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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-2026-118026
EUVD
EUVD-2026-110924

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a memory safety issue in Firefox's JavaScript garbage collection (GC) component. An invalid pointer dereference can occur, potentially leading to crashes or arbitrary code execution.

Impact Analysis

If exploited, this flaw could allow attackers to run malicious code on your system, crash your browser, or steal sensitive data. Users of Firefox versions before 159 are at risk.

Mitigation Strategies

Update Firefox to version 159 or later to address the invalid pointer issue in the JavaScript GC component.

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