CVE-2026-59004 in Android
Summary
by MITRE • 11/02/2026
In multiple locations, there is a possible permission bypass due to an uncaught exception. 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 • 11/02/2026
The vulnerability described represents a critical security flaw characterized by a permission bypass resulting from an unhandled or uncaught exception within the application logic. In software development, exceptions are mechanisms used to handle runtime errors and unexpected conditions. When these exceptions are not properly caught and managed, they can cause the program to deviate from its intended execution path, potentially skipping crucial authorization checks that precede sensitive operations. This specific flaw allows an attacker to bypass access controls without requiring elevated privileges or complex exploitation techniques, leading directly to a local escalation of privilege. The absence of required user interaction further exacerbates the severity, as it enables remote or automated exploitation vectors where the victim does not need to perform any deliberate action beyond triggering the vulnerable code path, such as through a crafted input or system call.
From a technical perspective, this issue aligns with CWE-209, which describes an error condition that exposes sensitive information, and more critically, CWE-754, which refers to improper check for unusual or exceptional conditions in security-critical software. The core of the problem lies in the failure to validate state transitions when errors occur. Typically, authorization checks are performed before executing privileged actions. If a function throws an exception during this process and the calling code does not catch it, the control flow may jump to a default error handler or terminate abruptly without enforcing the security policy that was intended to be applied. This creates a race condition-like scenario where the system state is inconsistent with its security requirements, allowing unauthorized access to resources or functions reserved for higher-privileged users.
The operational impact of this vulnerability is severe due to the potential for local privilege escalation. An attacker who gains initial foothold on the system, even at a low-privilege user level, can exploit this flaw to gain administrative rights or root access. This compromises the integrity and confidentiality of the entire system, as elevated privileges allow modification of system files, installation of persistent backdoors, and access to sensitive data stored in protected directories. Furthermore, because no additional execution privileges are needed for exploitation, the attack surface is significantly broadened. Any process running under a low-privilege account can potentially trigger this condition if it has any means of interacting with the vulnerable component, whether through direct API calls, file system interactions, or other inter-process communication mechanisms.
In terms of industry frameworks, this vulnerability maps to MITRE ATT&CK technique T1068, which covers Exploitation for Privilege Escalation. Specifically, it relates to sub-techniques involving exploitation of software vulnerabilities rather than misconfigurations. The lack of user interaction places it in categories where automated tools can be used to exploit the flaw efficiently across multiple targets within an enterprise environment. This makes it a high-priority target for threat actors seeking rapid lateral movement and persistence on compromised networks.
Mitigation strategies must focus on robust error handling practices and defense-in-depth principles. Developers should implement comprehensive try-catch blocks around all security-sensitive operations, ensuring that authorization checks are completed before any potential exception is thrown or handled. It is essential to verify permissions at every step of the execution flow rather than relying solely on initial checks. Additionally, implementing principle of least privilege ensures that even if an escalation occurs, the blast radius is limited by restricting what low-privilege processes can access. Regular code reviews focusing on exception handling patterns and static analysis tools configured to detect uncaught exceptions in security-critical paths are vital for preventing such vulnerabilities from reaching production environments.