CVE-2026-0020 is a vulnerability in the Android operating system's permission parsing mechanism, specifically within the parsePermissionGroup function of ParsedPermissionUtils.java. The flaw allows an attacker with local access to bypass the consent dialog that normally governs permission granting, effectively circumventing user consent and security controls. This bypass enables unauthorized acquisition of permissions, leading to an elevation of privilege without requiring any prior execution privileges or user interaction. The vulnerability affects Android versions 14, 15, 16, and 16-qpr2. The underlying issue is classified under CWE-639, which relates to authorization bypass through user interface manipulation. The CVSS v3.1 base score is 8.4, indicating a high severity with impacts rated as high on confidentiality, integrity, and availability. The attack vector is local (AV:L), with low attack complexity (AC:L), no privileges required (PR:N), and no user interaction (UI:N). The scope is unchanged (S:U), meaning the vulnerability affects the same security scope. Although no patches are currently linked, the vulnerability is publicly disclosed and should be addressed promptly. No known exploits have been reported in the wild to date.

This vulnerability poses a significant risk to organizations and individual users relying on affected Android versions. By bypassing the permission consent dialog, attackers can silently escalate privileges and gain unauthorized access to sensitive data or system functions. This can lead to data breaches, unauthorized data modification, or disruption of device functionality. Since exploitation requires only local access, attackers with physical access or control over a low-privileged app can leverage this flaw to compromise device security. The absence of user interaction requirement increases the stealth and effectiveness of potential attacks. Organizations with large Android device deployments, especially in sectors handling sensitive information such as finance, healthcare, and government, face heightened risk. The vulnerability undermines the fundamental trust model of Android permissions, potentially enabling malware or insider threats to operate undetected.

Until official patches are released, organizations should implement strict local access controls to prevent untrusted users or applications from gaining local access to devices. Employ mobile device management (MDM) solutions to enforce application whitelisting and restrict installation of unverified apps. Monitor device behavior for unusual permission escalations or suspicious activity. Encourage users to avoid installing apps from untrusted sources and maintain updated security policies. Once patches become available, prioritize immediate deployment across all affected devices. Additionally, consider employing runtime application self-protection (RASP) or endpoint detection and response (EDR) tools capable of detecting anomalous permission changes. For high-security environments, consider isolating critical Android devices or limiting physical access to trusted personnel only.