Information Disclosure Flaw in Firefox by Mozilla
CVE-2026-6782

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox
Vendor: CVE Published:; 21 April 2026

What is CVE-2026-6782?

This vulnerability in the IP Protection component of Firefox can lead to unauthorized information disclosure, potentially exposing sensitive user data. The flaw has been addressed in Firefox version 150, ensuring that users are protected from any malicious attempts to exploit this weakness.

Affected Version(s)

Firefox 150

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2026571

https://www.mozilla.org/security/advisories/mfsa2026-30/

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Apr 21, 2026
Vulnerability Reserved
Apr 21, 2026

Credit

Yuki Umemura

CVE-2026-6782 Data

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