CVE-2026-4712
Received Received - Intake

Information Disclosure in Firefox Cocoa Widget Component

Publication date: 2026-03-24

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description
Information disclosure in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

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Meta Information

Published
2026-03-24
Last Modified
2026-04-13
Generated
2026-07-06
AI Q&A
2026-03-24
EPSS Evaluated
2026-07-05
NVD
CVE-2026-4712
EUVD
EUVD-2026-14839

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox to 149.0 (exc)
mozilla firefox to 140.9.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

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Executive Summary

This vulnerability is an information disclosure issue in the Widget: Cocoa component affecting Mozilla Firefox versions earlier than 149 and Firefox ESR versions earlier than 140.9.

Impact Analysis

The vulnerability could lead to unauthorized disclosure of information through the affected component in Firefox, potentially exposing sensitive data to attackers.

Compliance Impact

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Detection Guidance

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Mitigation Strategies

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