CVE-2026-45520
Analyzed Analyzed - Analysis Complete

Biometrics Authentication Bypass in Android

Publication date: 2026-09-08

Last updated on: 2026-09-24

Assigner: Android (associated with Google Inc. or Open Handset Alliance)

Description
In onAttach of BiometricsSettingsBase.java, there is a possible authentication bypass due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

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Meta Information

Published
2026-09-08
Last Modified
2026-09-24
Generated
2026-09-29
AI Q&A
2026-09-09
EPSS Evaluated
2026-09-27
NVD
CVE-2026-45520

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
google android 14.0
google android 15.0
google android 16.0
google android 16.0
google android 17.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-441 The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor.

Attack-Flow Graph

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Executive Summary

This vulnerability is in the BiometricsSettingsBase.java file, specifically in the onAttach method. It allows an attacker to bypass authentication due to a confused deputy issue, which could lead to local privilege escalation without needing extra execution privileges or user interaction.

Impact Analysis

An attacker could exploit this to gain elevated privileges on your device locally, potentially accessing sensitive data or performing unauthorized actions without your knowledge or consent.

Mitigation Strategies

Apply the latest security patches from your device manufacturer or Android Open Source Project. Disable biometric authentication temporarily if possible until the patch is applied.

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