CVE-2026-58951 in Android
Summary
by MITRE • 11/02/2026
In multiple locations, there is a possible permission bypass due to a missing permission check. This could lead to local information disclosure 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 identified vulnerability represents a critical security flaw characterized by the absence of mandatory access control checks within specific system components, leading directly to unauthorized data exposure. In modern operating systems and application architectures, permission models are designed to enforce strict boundaries between user contexts, ensuring that processes running with lower privileges cannot access resources reserved for higher-privileged entities or other users. The failure to implement these necessary verification steps constitutes a fundamental breakdown in the principle of least privilege, allowing any authenticated local user to bypass intended security restrictions without requiring elevated system rights such as administrator or root permissions.
From a technical perspective, this missing permission check typically occurs when an application or service retrieves sensitive data from memory, disk storage, or configuration files but fails to validate whether the requesting process has the appropriate access control list (ACL) entries or capability tokens associated with that specific resource. This oversight allows attackers to craft simple requests or invoke system calls that directly interact with protected endpoints or file paths. Because the validation logic is entirely absent rather than flawed, there are no edge cases where a legitimate user might be incorrectly denied access; instead, the protection mechanism simply does not exist for these particular operations, creating an open door for information leakage.
The operational impact of this vulnerability centers on local information disclosure, which can have severe downstream consequences depending on the nature of the exposed data. Attackers with physical or remote shell access to a compromised host can exploit this flaw to extract sensitive configuration files, user credentials stored in plaintext or weakly hashed formats, cryptographic keys, session tokens, or proprietary application logic. This intelligence gathering phase is often a precursor to more sophisticated attacks, such as privilege escalation via credential reuse, lateral movement within a network using harvested secrets, or targeted social engineering campaigns based on discovered personal information. The fact that user interaction is not required for exploitation significantly lowers the barrier to entry for attackers, enabling automated scanning tools and worm-like malware to propagate rapidly across vulnerable systems without needing to trick end-users into clicking malicious links or executing scripts.
This vulnerability aligns closely with Common Weakness Enumeration (CWE) category CWE-284, which describes Improper Access Control, specifically reflecting scenarios where access control decisions are not enforced before granting access to sensitive resources. It also maps directly to the MITRE ATT&CK framework under techniques related to Credential Dumping or Data from Local System, such as T1003 (OS Credential Dumping) if credentials are exposed, or general data exfiltration patterns that rely on local privilege abuse rather than remote code execution exploits. The lack of required user interaction places this in the category of passive exploitation vectors, making it particularly dangerous in multi-tenant environments or shared hosting scenarios where one compromised account can lead to a complete breach of system confidentiality.
Mitigation strategies must focus on implementing robust access control mechanisms at both the application and operating system levels. Developers should conduct thorough code reviews to identify all entry points that interact with sensitive data and ensure that every such interaction is preceded by explicit permission verification using standard security APIs provided by the underlying platform. System administrators can apply temporary mitigations by restricting file permissions through strict ACLs, ensuring that only authorized service accounts have read access to critical configuration directories. Furthermore, deploying intrusion detection systems configured to monitor for unusual patterns of local resource access may help detect exploitation attempts in real-time while permanent patches are developed and deployed. Regular security audits and static application security testing (SAST) should be integrated into the development lifecycle to prevent similar oversights from being introduced in future releases.