CVE-2026-2800
Received Received - Intake
WebAuthn Spoofing Vulnerability in Firefox for Android

Publication date: 2026-02-24

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description
Spoofing issue in the WebAuthn component in Firefox for Android. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
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Meta Information
Published
2026-02-24
Last Modified
2026-04-13
Generated
2026-06-16
AI Q&A
2026-02-24
EPSS Evaluated
2026-06-15
NVD
CVE-2026-2800
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
mozilla firefox to 148.0 (exc)
mozilla thunderbird to 148.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-290 This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
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Executive Summary

This vulnerability is a spoofing issue in the WebAuthn component of Firefox for Android. It affects versions of Firefox prior to 148.

Impact Analysis

Exploitation of this vulnerability could allow an attacker to spoof authentication processes in Firefox for Android, potentially leading to unauthorized access or impersonation.

Compliance Impact

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Mitigation Strategies

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