CVE-2026-21056: Samsung Health Auth Bypass Vulnerability

CVE-2026-21056 Overview

CVE-2026-21056 is an improper authorization vulnerability in Samsung Health prior to version 7.00.0.107. The flaw allows local attackers to access connected device information without proper authorization checks. Samsung Health integrates with wearables, fitness trackers, and medical peripherals, so the exposed data can include device identifiers and pairing metadata.

The issue is classified as a mobile authorization bypass and requires local access with low privileges. Samsung addressed the issue in its July 2026 security maintenance release.

Critical Impact
Local attackers with low privileges can enumerate and read connected device information managed by Samsung Health, exposing paired wearable and health peripheral data.

Affected Products

Samsung Health application on Android
Samsung Health versions prior to 7.00.0.107
Samsung mobile devices with Samsung Health installed

Discovery Timeline

2026-07-10 - CVE-2026-21056 published to the National Vulnerability Database (NVD)
2026-07-10 - Last updated in NVD database

Technical Details for CVE-2026-21056

Vulnerability Analysis

The vulnerability is an improper authorization flaw in the Samsung Health application. Samsung Health manages connections to external devices such as smartwatches, scales, and heart rate monitors. The application exposes interfaces that return information about these connected devices.

Before version 7.00.0.107, these interfaces did not correctly verify the caller's authorization. A local attacker running an unprivileged application on the same device can query connected device information that should be restricted to authorized components. The attack requires no user interaction and does not need elevated privileges beyond a normal installed application.

The confidentiality impact is limited to information disclosure. The vulnerability does not modify data, degrade availability, or cross a security boundary beyond the local device.

Root Cause

The root cause is a missing or incomplete authorization check on an exported component or interface within Samsung Health. The application returns connected device details to any local caller instead of restricting the response to authorized callers with the appropriate permission or signature.

Attack Vector

The attack vector is local. An attacker must have code execution on the device, typically through a malicious or repackaged Android application installed by the user. The malicious application queries the exposed Samsung Health interface and receives connected device information. Exploitation is straightforward once a malicious application is on the device, though the local access requirement limits the exposure population.

No public proof-of-concept exploit is available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Refer to the Samsung Security Advisory for vendor-supplied technical detail.

Detection Methods for CVE-2026-21056

Indicators of Compromise

Installation of unknown or sideloaded Android applications on devices running Samsung Health
Android applications requesting access to Samsung Health components without a legitimate purpose
Samsung Health versions earlier than 7.00.0.107 present in mobile inventory

Detection Strategies

Inventory managed mobile devices and flag any running Samsung Health versions below 7.00.0.107
Review Mobile Device Management (MDM) telemetry for sideloaded packages that interact with Samsung Health components
Monitor Android application permission requests targeting Samsung Health providers or services

Monitoring Recommendations

Enable MDM compliance policies that report Samsung Health application version on enrolled devices
Track Samsung monthly security bulletin releases for follow-up advisories referencing this component
Alert on new application installations on devices used for corporate health or fitness programs

How to Mitigate CVE-2026-21056

Immediate Actions Required

Update Samsung Health to version 7.00.0.107 or later through the Galaxy Store or Google Play
Enforce mobile application version compliance through MDM for all managed devices
Remove untrusted or sideloaded Android applications from devices with Samsung Health installed

Patch Information

Samsung addressed CVE-2026-21056 in Samsung Health version 7.00.0.107. The fix is distributed through the Galaxy Store and Google Play Store. Refer to the Samsung Security Advisory for the July 2026 bulletin containing the fix reference.

Workarounds

Restrict installation of applications from unknown sources on affected devices
Uninstall Samsung Health on devices that cannot be updated and do not require its functionality
Isolate corporate devices used for health tracking from unmanaged application installations

bash

# Verify Samsung Health version via ADB on a managed device
adb shell dumpsys package com.sec.android.app.shealth | grep versionName