Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionCVE.org
Insufficient policy enforcement in DevTools in Google Chrome on Android prior to 148.0.7778.96 allowed a local attacker to perform privilege escalation via a malicious file. (Chromium security severity: High)
AnalysisAI
Local privilege escalation in Google Chrome for Android prior to 148.0.7778.96 allows attackers to elevate privileges through malicious files exploiting insufficient policy enforcement in DevTools. The vulnerability requires user interaction to open a crafted file but grants no authentication requirement (PR:N) for the initial attack vector. Google released patch version 148.0.7778.96 addressing this high-severity flaw. EPSS data not available; no CISA KEV listing or public POC identified at time of analysis, suggesting exploitation remains theoretical or non-widespread.
Technical ContextAI
This vulnerability stems from CWE-693 (Protection Mechanism Failure) in Chrome's DevTools implementation on Android. The affected component is cpe:2.3:a:google:chrome (all versions prior to 148.0.7778.96 on Android platform). DevTools in Chrome provides developer debugging and inspection capabilities that typically operate with elevated privileges to inspect application state, modify runtime behavior, and access system resources. Insufficient policy enforcement means the security boundaries between DevTools' privileged context and user-controlled file input were not properly validated. When a malicious file is processed by DevTools on Android, the lack of proper sandboxing or permission checks allows the attacker-controlled content to escape intended restrictions and execute operations at a higher privilege level than the initial file-opening context. This represents a classic privilege boundary violation where trust assumptions about file content were not properly enforced by security policies.
RemediationAI
Update Google Chrome on Android to version 148.0.7778.96 or later immediately, as confirmed by Google's stable channel update advisory at chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html. For managed Android fleets, push the update through MDM/EMM platforms and verify installation via device compliance policies. If immediate patching is not feasible, implement compensating controls: (1) Disable Chrome DevTools on managed Android devices via Chrome policy management (chrome://policy) by setting DeveloperToolsAvailability to 2 (disallow DevTools entirely) - this eliminates the attack surface but prevents legitimate developer debugging. (2) Deploy mobile threat defense solutions that scan files before opening and block execution of suspicious content targeting browser developer features. (3) Enforce strict application allowlisting to prevent installation of file manager apps that could facilitate malicious file delivery to DevTools. (4) User training to never open unknown files in Chrome DevTools, though UI:R dependency makes this a weak control. Note that disabling DevTools significantly impacts developer productivity and should only be applied to non-developer device populations.
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Same weakness CWE-693 – Protection Mechanism Failure
View allSame technique Privilege Escalation
View allVendor StatusVendor
SUSE
Severity: HighShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-27929