Spoofing Vulnerability in Mozilla Firefox Security Component

CVE-2026-124934

What is CVE-2026-124934?

A spoofing vulnerability has been identified in the Security component of Mozilla Firefox, allowing attackers to impersonate users or services. This issue affects users of Firefox versions prior to 160 and Firefox ESR prior to 153.7. Users are encouraged to update their browsers to protect against potential misuse and enhance their online security. For detailed advisories and more information, please refer to the Mozilla security advisories.

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