Information Disclosure in Password Manager Component of Mozilla Firefox
CVE-2026-12320

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox
Vendor: CVE Published:; 16 June 2026

What is CVE-2026-12320?

A vulnerability was identified in the Password Manager component of Mozilla Firefox, which could allow unauthorized access to sensitive information. This issue was resolved in Firefox version 152, ensuring enhanced security measures to protect user credentials and personal data from being inadvertently exposed.

Affected Version(s)

Firefox 152

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2027572

https://www.mozilla.org/security/advisories/mfsa2026-57/

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Jun 16, 2026
Vulnerability Reserved
Jun 15, 2026

Credit

Av0id

CVE-2026-12320 Data

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