CVE-2026-100826
Received Received - Intake

Denial-of-Service in Firefox StorageManager

Publication date: 2026-09-29

Last updated on: 2026-09-29

Assigner: Mozilla Corporation

Description
Denial-of-service in the Storage: StorageManager component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.

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Meta Information

Published
2026-09-29
Last Modified
2026-09-29
Generated
2026-09-29
AI Q&A
2026-09-29
EPSS Evaluated
N/A
NVD
CVE-2026-100826
EUVD
EUVD-2026-88805

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox to 153.4 (inc)
mozilla firefox to 157 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

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Executive Summary

This is a denial-of-service vulnerability in Firefox's StorageManager component. It was patched in Firefox ESR 153.4 and Firefox 157. The issue allows attackers to crash the browser by exploiting flaws in storage management.

Impact Analysis

If exploited, this vulnerability could cause your Firefox browser to crash repeatedly, leading to loss of unsaved work and disruption of normal browsing activities. It does not appear to allow data theft or remote code execution.

Mitigation Strategies

Update Firefox ESR to version 153.4 or later and Firefox to version 157 or later to address the Denial-of-service vulnerability in the Storage: StorageManager component.

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