CVE-2026-17906 in Chrome
Summary
by MITRE • 07/30/2026
Insufficient validation of untrusted input in Bluetooth in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 07/30/2026
This vulnerability represents a critical sandbox escape risk in Google Chrome's Bluetooth implementation that emerged from insufficient validation of untrusted input within the browser's rendering engine. The flaw existed in Chrome versions prior to 151.0.7922.72 and allowed remote attackers with compromised renderer processes to potentially break out of the sandbox isolation mechanism through carefully crafted HTML pages. The vulnerability stems from inadequate input sanitization when processing Bluetooth-related data structures, creating a pathway for malicious code execution outside the restricted browser environment.
The technical nature of this flaw places it squarely within the realm of sandbox escape vulnerabilities, where attacker-controlled data bypasses security boundaries designed to contain malicious activities. When a renderer process is compromised through other attack vectors, an adversary could leverage this Bluetooth input validation weakness to execute arbitrary code with elevated privileges beyond the typical sandbox limitations. This represents a significant escalation in threat capabilities as it allows attackers to potentially access system resources, files, and other applications that should normally remain isolated from web content.
From an operational impact perspective, this vulnerability undermines one of Chrome's core security defenses by enabling privilege escalation through seemingly benign web content. The low severity classification according to Chromium's security framework belies the actual risk level, as sandbox escapes typically represent high-impact threats that can lead to complete system compromise. Attackers could exploit this weakness in conjunction with other vulnerabilities or through social engineering campaigns to achieve persistent access and data exfiltration capabilities.
The vulnerability aligns with CWE-20 (Improper Input Validation) and maps to ATT&CK technique T1059.007 (Command and Scripting Interpreter: JavaScript) within the adversary tactics framework. Security teams should prioritize immediate patch deployment across all affected Chrome installations to prevent exploitation. Mitigation strategies include maintaining updated browser versions, implementing network-based protections such as web application firewalls, and monitoring for suspicious Bluetooth-related activity in compromised systems. Organizations should also consider additional layers of defense including browser hardening configurations and user education about phishing risks that could lead to initial renderer compromise.
This vulnerability highlights the complexity of modern browser security architectures where multiple attack surfaces must be protected against sophisticated threats. The remediation process requires careful coordination between security teams, IT administrators, and application developers to ensure complete protection across all affected systems. Organizations should also conduct thorough risk assessments to identify potential exploitation vectors that could leverage this weakness in combination with other vulnerabilities, particularly those related to renderer process compromise or privilege escalation techniques.