CVE-2026-0034 in Android
Summary
by MITRE • 03/02/2026
In setPackageOrComponentEnabled of ManagedServices.java, there is a possible notification policy desync due to improper input validation. 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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Analysis
by VulDB Data Team • 03/10/2026
The vulnerability identified as CVE-2026-0034 resides within the ManagedServices.java component of an Android system, specifically in the setPackageOrComponentEnabled method. This flaw represents a critical security weakness that stems from inadequate input validation mechanisms, creating a potential notification policy desynchronization scenario. The issue manifests when the system fails to properly validate the inputs provided to the package or component enabling functions, allowing for malformed or malicious data to be processed without sufficient safeguards.
The technical implementation of this vulnerability involves a failure in the Android system's permission and notification management subsystem where the setPackageOrComponentEnabled method does not adequately sanitize or verify the parameters it receives. This weakness enables an attacker to manipulate the notification policy settings through improper input handling, potentially causing the system to misinterpret or incorrectly process notification configurations for various applications. The vulnerability specifically impacts the Android framework's ability to maintain consistent notification policy states across different system components.
From an operational perspective, this vulnerability presents a significant risk for local privilege escalation attacks. The flaw does not require any additional execution privileges or user interaction for exploitation, making it particularly dangerous as it can be leveraged by malicious applications already present on the device. Attackers can exploit this weakness to gain elevated privileges within the system, potentially allowing them to access sensitive data, modify system configurations, or even install malicious applications with system-level permissions. The absence of user interaction requirements means that the attack can be executed automatically without any human intervention, increasing the stealth and effectiveness of potential exploitation.
The security implications extend beyond simple privilege escalation, as this vulnerability can potentially compromise the integrity of the Android notification system and overall device security posture. The notification policy desynchronization can lead to unauthorized access to notification data, potentially exposing sensitive information that would normally be protected by proper access controls. This flaw aligns with CWE-20, which addresses improper input validation, and represents a classic example of how inadequate validation can lead to privilege escalation vulnerabilities. The attack vector falls under the MITRE ATT&CK framework category of privilege escalation, specifically targeting the local system through manipulation of core Android system components.
Mitigation strategies for CVE-2026-0034 should focus on implementing robust input validation mechanisms within the setPackageOrComponentEnabled method and related notification policy handling functions. System administrators and developers should ensure that all inputs are properly sanitized and validated before being processed by the notification management subsystem. The Android security team should implement comprehensive parameter validation checks that verify the integrity and legitimacy of package and component identifiers before allowing any enabling or disabling operations. Additionally, regular security audits of core system components should be conducted to identify and address similar input validation weaknesses that could potentially lead to privilege escalation vulnerabilities. Updates and patches should be deployed immediately to address this vulnerability, as the lack of user interaction requirements makes it particularly dangerous in real-world exploitation scenarios.