Information Disclosure Vulnerability in Firefox for Android by Mozilla

CVE-2026-18809

What is CVE-2026-18809?

A vulnerability affecting Firefox for Android and Firefox Focus has been identified, allowing for potential information disclosure. This flaw could allow malicious entities to access sensitive user data bypassing normal application controls. Mozilla addressed this issue with the release of version 153.0.3, where the vulnerability has been effectively mitigated. Users are strongly encouraged to update their applications to ensure their data remains secure.

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