CVE-2026-11650 Overview
CVE-2026-11650 is a use-after-free vulnerability [CWE-416] in the V8 JavaScript engine used by Google Chrome. The flaw affects Chrome versions prior to 149.0.7827.103 across Windows, macOS, and Linux. A remote attacker can execute arbitrary code inside the Chrome sandbox by tricking a user into visiting a crafted HTML page. Google classifies the Chromium security severity as High and has issued a stable channel update to remediate the issue.
Critical Impact
Remote attackers can achieve arbitrary code execution within the Chrome renderer sandbox through a single crafted web page, providing a foothold for further sandbox escape chains.
Affected Products
- Google Chrome prior to 149.0.7827.103 on Microsoft Windows
- Google Chrome prior to 149.0.7827.103 on Apple macOS
- Google Chrome prior to 149.0.7827.103 on Linux
Discovery Timeline
- 2026-06-09 - CVE-2026-11650 published to NVD
- 2026-06-09 - Last updated in NVD database
- 2026-06-09 - Google releases stable channel update addressing the vulnerability
Technical Details for CVE-2026-11650
Vulnerability Analysis
The vulnerability resides in V8, the JavaScript and WebAssembly engine that powers Chrome. V8 is responsible for parsing, compiling, and executing JavaScript delivered by web pages. A use-after-free condition occurs when memory referenced by a pointer is freed, but the pointer continues to be used by the program. Attackers leveraging this primitive can reclaim the freed memory with controlled data and influence subsequent operations on the dangling object.
Exploitation requires user interaction, specifically navigation to attacker-controlled content. No privileges or authentication are required on the target system, and the attack is conducted entirely over the network. Successful exploitation provides code execution constrained to the renderer sandbox, which adversaries typically pair with a separate sandbox escape to achieve full host compromise.
Root Cause
The root cause is improper object lifetime management within V8 [CWE-416]. When an object reference is retained after the underlying memory has been released, subsequent access can trigger type confusion, function pointer hijacking, or controlled writes to attacker-influenced memory regions. Google has not disclosed the specific V8 component responsible while patch adoption is in progress. Technical specifics are tracked in the Chromium Issue Tracker entry.
Attack Vector
An attacker hosts a crafted HTML page that delivers JavaScript designed to manipulate V8 internal object lifetimes. When a victim visits the page, the script triggers the use-after-free and pivots the corrupted object into a code execution primitive inside the renderer process. The attack does not require any prior access to the target machine and can be staged through malicious advertisements, phishing links, or compromised websites.
No public proof-of-concept exploit is currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. The current EPSS probability is 0.128%.
Detection Methods for CVE-2026-11650
Indicators of Compromise
- Chrome browser processes spawning unexpected child processes such as cmd.exe, powershell.exe, or shell interpreters following web navigation
- Renderer processes performing outbound network connections to non-browsing infrastructure or writing executable content to disk
- Crash telemetry from chrome.exe referencing V8 modules immediately after visiting an external page
Detection Strategies
- Monitor endpoint telemetry for anomalous parent-child relationships originating from chrome.exe or the Chrome renderer
- Inspect browser version inventories to identify hosts running Chrome below 149.0.7827.103
- Correlate web proxy logs with endpoint process creation events to identify potential drive-by exploitation attempts
Monitoring Recommendations
- Track Chrome update compliance across managed fleets through enterprise management tooling
- Alert on renderer sandbox process anomalies, including unexpected memory allocations and module loads
- Ingest browser crash reports into centralized logging to surface repeated V8 faults that may indicate exploitation attempts
How to Mitigate CVE-2026-11650
Immediate Actions Required
- Update Google Chrome to version 149.0.7827.103 or later on all Windows, macOS, and Linux endpoints
- Restart Chrome after the update to ensure the patched binary is loaded
- Verify enterprise auto-update policies are enabled and not blocked by group policy or proxy restrictions
Patch Information
Google released the fix in the stable channel update announced in the Google Chrome Desktop Update advisory. Administrators should confirm deployment by checking chrome://settings/help on managed endpoints or by querying installed versions through endpoint management platforms. Chromium-based browsers that embed V8, including Microsoft Edge, Brave, and Opera, should be updated once their respective vendors ship the corresponding fix.
Workarounds
- Disable JavaScript execution for untrusted sites through enterprise Chrome policies where business workflows permit
- Apply web filtering to block access to known malicious domains and reduce exposure to drive-by exploitation
- Enforce site isolation and ensure the Chrome sandbox is not disabled through command-line flags such as --no-sandbox
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
