CVE-2026-12320
Analyzed Analyzed - Analysis Complete

Password Manager Information Disclosure in Firefox

Publication date: 2026-06-16

Last updated on: 2026-06-16

Assigner: Mozilla Corporation

Description
Information disclosure in the Password Manager component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

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Meta Information

Published
2026-06-16
Last Modified
2026-06-16
Generated
2026-07-06
AI Q&A
2026-06-16
EPSS Evaluated
2026-07-05
NVD
CVE-2026-12320
EUVD
EUVD-2026-37111

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox to 152.0.0 (exc)
mozilla thunderbird to 152.0.0 (exc)

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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.

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Executive Summary

This vulnerability is an information disclosure issue in the Password Manager component of Firefox. It means that sensitive information managed by the Password Manager could potentially be exposed to unauthorized parties. The issue was addressed and fixed in Firefox version 152.

Impact Analysis

The impact of this vulnerability could include unauthorized access to stored passwords or sensitive information within the Password Manager, potentially leading to compromised accounts or data breaches.

Mitigation Strategies

To mitigate this vulnerability, update Firefox to version 152 or later, where the issue has been fixed.

Compliance Impact

This vulnerability involves information disclosure in the Password Manager component, which could potentially expose sensitive user data.

Such information disclosure vulnerabilities may impact compliance with data protection standards and regulations like GDPR and HIPAA, as these require safeguarding personal and sensitive information against unauthorized access.

However, specific details on how this vulnerability affects compliance with these standards are not provided.

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