CVE-2026-21127 in Account
Summary
by MITRE • 10/12/2026
Improper export of android application components in Samsung Account prior to version 15.7.01.1 allows local attackers to access sensitive data.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 10/12/2026
The vulnerability identified as an improper export of Android application components within the Samsung Account application, specifically affecting versions prior to 15.7.01.1, represents a significant security misconfiguration rooted in the failure to enforce strict component visibility controls. In the Android operating system architecture, applications are composed of various components such as activities, services, broadcast receivers, and content providers that can interact with other apps or external entities. When these components are exported without appropriate permission restrictions, they become accessible to any application installed on the device, regardless of its trustworthiness or origin. This flaw allows local attackers who have gained access to a user's device to invoke specific intents targeting these exposed endpoints, effectively bypassing intended security boundaries and gaining unauthorized entry into sensitive areas of the Samsung Account ecosystem.
From a technical perspective, this issue aligns closely with CWE-269, which classifies Improper Privilege Management, specifically regarding the failure to restrict access to components that handle privileged operations or sensitive user data. The exported components likely expose internal APIs or interfaces designed for system-level interactions rather than public consumption. By leveraging these exposed entry points, an attacker can perform actions such as reading private account details, manipulating session tokens, or triggering background services without proper authentication checks. This type of vulnerability is often associated with the ATT&CK technique T1530, Data from Local System, where adversaries harvest data directly from compromised endpoints using local execution capabilities rather than remote exploitation vectors.
The operational impact of this vulnerability extends beyond simple data leakage to potential account compromise and identity theft. Since Samsung Account credentials are frequently used as a primary authentication method for accessing other services including cloud storage, device management features, and payment information, unauthorized access can have cascading effects across multiple platforms. An attacker with local access could extract session cookies or personal identifiable information stored within the application's private data directories via these exported components. This not only violates user privacy but also undermines the integrity of Samsung’s broader security infrastructure by allowing a low-privilege app to escalate its influence over high-value account resources.
Mitigation strategies primarily involve updating the Samsung Account application to version 15.7.01.1 or later, where these component exports have been restricted through proper Android manifest configurations such as setting android:exported=false for non-public components and enforcing signature-level permissions for necessary internal communications. For users unable to update immediately due to device compatibility constraints, restricting app installation sources to trusted vendors and utilizing Samsung Knox security features can provide additional layers of defense against local privilege escalation attacks. Developers must also adhere to the principle of least privilege when designing Android applications, ensuring that no component is exposed unless absolutely required for cross-app functionality, and implementing rigorous input validation on all exported interfaces to prevent exploitation through malformed intents or parameter injection.