CVE-2026-58836
Received Received - Intake

ECM Bypass in Android Package Installer

Publication date: 2026-11-02

Last updated on: 2026-11-02

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

Description
In handlePackagePostInstall of InstallPackageHelper.java, there is a possible Enhanced Confirmation Mode (ECM) bypass vulnerability that allows a sideloaded application to modify the package source during a self-update due to a logic error in the code. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.

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Meta Information

Published
2026-11-02
Last Modified
2026-11-02
Generated
2026-11-02
AI Q&A
2026-11-02
EPSS Evaluated
N/A
NVD
CVE-2026-58836

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
Google Android 17
Google Android 16-qpr2
Google Android 16

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-693 The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

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Executive Summary

This vulnerability is in the Android system's package installation process. It allows a sideloaded app to bypass security checks during self-updates by exploiting a logic error in InstallPackageHelper.java. This could let the app change its package source without proper verification, potentially leading to privilege escalation.

Impact Analysis

If exploited, this vulnerability could allow an attacker to gain elevated privileges on your device. This means they might access sensitive data or perform actions requiring higher permissions without your knowledge. User interaction is not required for exploitation.

Mitigation Strategies

Apply the latest Android security updates from Google to patch the logic error in InstallPackageHelper.java. Monitor official Android security bulletins for updates related to this CVE.

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