CVE-2026-79194 Overview
CVE-2026-79194 is a use-after-free vulnerability in the Chromoting component of Google Chrome on Windows. Chromoting is the technology underlying Chrome Remote Desktop. The flaw affects Chrome versions prior to 152.0.7977.65 and allows a remote attacker to execute arbitrary code outside the browser sandbox by delivering crafted network traffic. Chromium classifies the security severity as High. The vulnerability is tracked under CWE-416.
Critical Impact
Successful exploitation grants arbitrary code execution outside the Chrome sandbox on Windows hosts, providing attackers with access to the underlying operating system rather than a constrained renderer process.
Affected Products
- Google Chrome on Windows prior to 152.0.7977.65
- Microsoft Windows systems running vulnerable Chrome builds
- Chrome Remote Desktop deployments relying on the Chromoting component
Discovery Timeline
- 2026-08-25 - CVE-2026-79194 published to NVD
- 2026-08-27 - Last updated in NVD database
Technical Details for CVE-2026-79194
Vulnerability Analysis
The vulnerability resides in Chromoting, the remote desktop framework embedded in Chrome on Windows. A use-after-free condition occurs when the component references memory that has already been released. Attackers craft malicious network traffic that triggers premature object deallocation while another code path retains a dangling pointer. Reusing the freed allocation lets the attacker control object contents referenced by that pointer.
Because Chromoting handles network sessions outside the renderer sandbox, exploitation bypasses the standard renderer isolation boundary. The attacker gains execution in a process with broader access to the host. The Chromium advisory rates the impact as High, and the attack complexity is elevated due to timing and memory-layout requirements.
Root Cause
The root cause is a lifecycle mismanagement bug within Chromoting where object ownership is not correctly synchronized with pointer references. When a session or message-handling object is freed, other code continues to dereference it. This creates the classic CWE-416 pattern where freed memory is reallocated with attacker-influenced content before reuse.
Attack Vector
Exploitation is network-based and requires no authentication or user interaction. A remote attacker sends crafted network traffic to a Chrome instance running Chromoting on Windows. The traffic sequences trigger the use-after-free and shape heap layout to place controlled data in the freed slot. See the Chromium Issue #515470739 tracker for restricted technical details.
No public proof-of-concept, exploit-database entry, or CISA KEV listing exists for CVE-2026-79194 at the time of writing.
Detection Methods for CVE-2026-79194
Indicators of Compromise
- Chrome or Chrome Remote Desktop host processes on Windows spawning unexpected child processes such as cmd.exe, powershell.exe, or rundll32.exe.
- Crash telemetry from chrome.exe or remoting_host.exe referencing freed heap objects in the Chromoting module.
- Outbound connections from Chromoting host processes to unfamiliar remote endpoints outside normal remote-desktop peer traffic.
Detection Strategies
- Inventory Windows endpoints running Chrome versions earlier than 152.0.7977.65 and flag them as exposed.
- Alert on anomalous process lineage where Chromoting or Chrome Remote Desktop components launch scripting or living-off-the-land binaries.
- Correlate Windows Error Reporting crashes in Chromoting with subsequent process-injection or credential-access behavior.
Monitoring Recommendations
- Ingest endpoint process, network, and crash telemetry into a centralized data lake to enable retrospective hunting for Chromoting-related anomalies.
- Monitor egress from hosts running Chrome Remote Desktop for connections outside sanctioned relay infrastructure.
- Track Chrome version compliance continuously and alert when hosts fall behind the patched build.
How to Mitigate CVE-2026-79194
Immediate Actions Required
- Update Google Chrome on all Windows endpoints to version 152.0.7977.65 or later using the Stable Channel Update for Desktop.
- Restart Chrome after the update so the patched Chromoting binaries load into memory.
- Audit which Windows systems have Chrome Remote Desktop or Chromoting-based remote access enabled and prioritize them for patching.
Patch Information
Google addressed CVE-2026-79194 in Chrome 152.0.7977.65 for Windows on the Stable channel. Enterprise deployments should push the update through managed channels such as Group Policy, Microsoft Intune, or Google Chrome Enterprise administrative controls. Verify version rollout using endpoint inventory data.
Workarounds
- Disable Chrome Remote Desktop and the Chromoting host service on Windows endpoints that do not require remote access until the patch is applied.
- Restrict inbound and outbound network access for Chromoting host processes at the host or perimeter firewall.
- Enforce Chrome auto-update policies to reduce the exposure window for future Chromium vulnerabilities.
# Verify installed Chrome version on Windows (PowerShell)
(Get-Item "$env:ProgramFiles\Google\Chrome\Application\chrome.exe").VersionInfo.ProductVersion
# Disable the Chrome Remote Desktop host service if not needed
Stop-Service -Name "chromoting" -Force
Set-Service -Name "chromoting" -StartupType Disabled
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
