CVE-2026-15119 in Chrome
Summary
by MITRE • 07/09/2026
Race in GetUserMedia in Google Chrome prior to 150.0.7871.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
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Analysis
by VulDB Data Team • 07/09/2026
The vulnerability in question represents a critical race condition affecting the GetUserMedia API implementation within Google Chrome versions prior to 150.0.7871.115. This flaw resides in the browser's handling of media device access requests and creates a pathway for attackers who have already compromised the renderer process to potentially escape the sandbox protection mechanisms that isolate web content from the underlying operating system. The race condition occurs during the asynchronous processing of media device permissions, where timing dependencies between different execution threads create opportunities for malicious code to manipulate the permission flow before proper validation occurs.
The technical exploitation of this vulnerability leverages the inherent timing gaps in how Chrome processes media access requests through the GetUserMedia API. When a web page attempts to access camera or microphone devices, the browser must coordinate between multiple processes including the renderer and the browser process that handles device permissions. During this coordination, if an attacker can manipulate the execution timing sufficiently, they may be able to bypass the normal permission checks that should occur before device access is granted. This race condition specifically affects the validation logic that occurs during the media device enumeration and permission granting phases.
The operational impact of this vulnerability extends beyond simple privilege escalation as it represents a significant sandbox escape vector that could allow attackers to gain access to sensitive system resources including camera feeds, microphone input, and potentially other device interfaces. The Chromium security severity classification of High indicates the substantial risk this flaw presents to user privacy and system integrity. Attackers who have already achieved renderer process compromise can leverage this vulnerability to move laterally within the browser sandbox and potentially execute arbitrary code with elevated privileges that would normally be restricted to the isolated web content environment.
From a cybersecurity perspective, this vulnerability aligns with several ATT&CK framework techniques including T1059 for command and scripting interpreter and T1078 for valid accounts, as well as CWE-362 which specifically addresses race conditions. The flaw demonstrates how seemingly minor timing issues in complex software systems can create significant security implications when combined with other attack vectors. Organizations should prioritize patching this vulnerability immediately, as the window of opportunity for exploitation exists for all Chrome versions prior to 150.0.7871.115. The remediation requires updating to the patched version where proper synchronization mechanisms have been implemented to prevent the race condition from being exploitable.
Security practitioners should monitor for potential exploitation attempts targeting this vulnerability through unusual GetUserMedia API usage patterns or abnormal device access requests that might indicate an attacker attempting to leverage the race condition. The mitigation strategy extends beyond simple patch management to include network monitoring for suspicious browser behavior and endpoint detection measures that can identify attempts to escape sandbox boundaries. Additionally, organizations should consider implementing additional security controls such as content security policies and strict browser hardening measures to reduce the attack surface available to potential exploiters of this class of vulnerability.