CVE-2026-17708 in Chrome
Summary
by MITRE • 07/30/2026
Use after free in Audio 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: High)
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Analysis
by VulDB Data Team • 07/30/2026
This vulnerability represents a critical use-after-free condition in the audio subsystem of Google Chrome browsers prior to version 151.0.7922.72, classified as a chromium security severity high. The flaw occurs within the renderer process when handling crafted HTML content that triggers improper memory management during audio processing operations. The vulnerability stems from a classic use-after-free error where memory allocated for audio processing structures is freed but subsequently accessed by malicious code, creating a potential pathway for privilege escalation and sandbox escape.
The technical implementation involves memory corruption within Chrome's audio rendering pipeline where objects are deallocated while still referenced by active audio processing threads or callbacks. When a malicious HTML page triggers specific audio operations such as Web Audio API calls combined with crafted audio data manipulation, the browser's garbage collection or memory management system fails to properly track object lifecycles. This creates a window of opportunity where an attacker can manipulate freed memory locations to execute arbitrary code outside the normal sandbox boundaries that typically isolate renderer processes from system-level operations.
The operational impact of this vulnerability extends beyond simple remote code execution as it enables attackers who have already compromised the renderer process through other means to break out of the sandbox environment entirely. The attack chain typically begins with a successful initial compromise of the browser's renderer process, often through a separate vulnerability or social engineering attack, followed by exploitation of this use-after-free condition to escalate privileges and gain access to system resources that should normally be restricted from browser processes. This represents a significant escalation from typical browser-based attacks to full system compromise.
The vulnerability aligns with CWE-416, which specifically addresses use-after-free conditions in memory management, and maps to ATT&CK technique T1059.007 for command and scripting interpreter usage in conjunction with sandbox escape techniques. Organizations should immediately update to Chrome version 151.0.7922.72 or later as the primary mitigation strategy, while implementing additional network-level protections such as content security policies that restrict audio-related JavaScript execution and web audio API access from untrusted sources. Browser hardening measures including enhanced memory protection mechanisms and proactive monitoring for suspicious memory access patterns can provide additional defense layers against exploitation attempts.
Security teams should also consider implementing process isolation controls and monitoring for unusual memory allocation patterns that might indicate attempted exploitation of similar use-after-free conditions. The vulnerability demonstrates the critical importance of proper memory management in browser environments where complex multimedia processing operations interact with potentially malicious user input, highlighting the need for comprehensive security testing of all audio processing pathways within web browsers to prevent similar issues from emerging in future versions.