CVE-2026-4728

Description

Spoofing issue in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

Affected Platforms

Weakness Type

CWE-290

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2013179
• https://www.mozilla.org/security/advisories/mfsa2026-20/
• https://www.mozilla.org/security/advisories/mfsa2026-23/