CVE-2026-17752: Google Chrome Use After Free Vulnerability

CVE-2026-17752 Overview

CVE-2026-17752 is a use-after-free vulnerability in the Views component of Google Chrome on macOS. The flaw affects Chrome versions prior to 151.0.7922.72 and can be triggered when a user loads a crafted HTML page. A remote attacker who successfully exploits the condition can induce heap corruption in the renderer or browser process. Google classifies the Chromium security severity as Medium. The issue is tracked under CWE-416: Use After Free and was resolved in the stable channel update announced by Google.

Critical Impact
Remote attackers can trigger heap corruption in Chrome on Mac by luring users to a crafted HTML page, potentially enabling arbitrary code execution within the browser process.

Affected Products

Google Chrome for macOS versions prior to 151.0.7922.72
Chromium-based Views component on macOS
Downstream Chromium browsers on macOS that have not merged the upstream fix

Discovery Timeline

2026-07-30 - CVE-2026-17752 published to NVD
2026-07-30 - Last updated in NVD database

Technical Details for CVE-2026-17752

Vulnerability Analysis

The vulnerability resides in the Views subsystem, the UI toolkit Chromium uses to render browser chrome and dialogs on desktop platforms. A use-after-free condition occurs when memory backing a Views object is freed while another code path still holds a reference to it. When that dangling pointer is dereferenced, the browser reads or writes into memory that may have been reallocated for attacker-controlled data.

On macOS, the Views implementation interacts with Cocoa windowing primitives and Chromium's own object lifetime management. Improper sequencing between object destruction and asynchronous callbacks can leave stale references active. An attacker who controls the freed slot can influence virtual table pointers or heap metadata, producing heap corruption suitable for further exploitation.

Root Cause

The root cause is a lifetime mismatch in Views object management, classified as [CWE-416]. A Views component is released before all consumers have relinquished their pointers. Subsequent method calls dispatch through a dangling pointer, corrupting the heap. Additional technical details are tracked in the Chromium Issue Tracker entry.

Attack Vector

Exploitation requires a victim to visit or be redirected to a crafted HTML page under attacker control. The page triggers a sequence of Document Object Model (DOM) and UI interactions that force the vulnerable Views code path to free memory and then reuse it. No authentication is required, and interaction is limited to normal browsing.

No public proof-of-concept exploit is referenced in the advisory. Refer to the Google Chrome Update Announcement for vendor guidance.

Detection Methods for CVE-2026-17752

Indicators of Compromise

Unexpected Chrome renderer or browser process crashes on macOS with heap corruption signatures in ReportCrash logs
Chrome child processes spawning unusual subprocesses such as bash, osascript, or curl
Outbound connections from Chrome to newly registered or low-reputation domains hosting HTML payloads

Detection Strategies

Inventory macOS endpoints running Chrome versions below 151.0.7922.72 using software asset management or endpoint telemetry
Monitor Chrome crash reports for repeated segmentation faults or EXC_BAD_ACCESS signals that correlate with browsing activity
Correlate web proxy logs with endpoint process telemetry to identify users who loaded suspicious HTML pages preceding Chrome crashes

Monitoring Recommendations

Alert on Chrome helper processes writing executables to user-writable paths such as ~/Library/Application Support/ or /tmp
Track post-exploitation persistence attempts including launchctl modifications and new LaunchAgents entries
Ingest Chrome version telemetry into a central data lake to identify unpatched hosts at scale

How to Mitigate CVE-2026-17752

Immediate Actions Required

Update Google Chrome on macOS to version 151.0.7922.72 or later across all managed endpoints
Force a browser restart after the update to ensure the vulnerable Views code is unloaded from memory
Validate the deployed Chrome version through management tooling and remediate any hosts that did not receive the update

Patch Information

Google addressed CVE-2026-17752 in the Chrome stable channel release for desktop. macOS users must install Chrome 151.0.7922.72 or later. Details are available in the Google Chrome Update Announcement and the Chromium Issue Tracker Entry.

Workarounds

Restrict browsing to trusted sites until the patch is deployed, using enterprise web filtering policies
Enforce Chrome auto-update policies through configuration profiles to eliminate version drift
Disable or restrict rendering of untrusted HTML in embedded WebView contexts on macOS builds until updated

bash

# Verify installed Chrome version on macOS
/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --version

# Enforce auto-update via configuration profile (Google Chrome MDM key)
defaults write com.google.Keystone.Agent checkInterval -int 3600