CVE-2026-13783: Google Chrome Use After Free Vulnerability

CVE-2026-13783 Overview

CVE-2026-13783 is a use-after-free vulnerability [CWE-416] in the Views component of Google Chrome prior to version 150.0.7871.47. A remote attacker can exploit heap corruption by convincing a user to engage in specific UI gestures on a crafted HTML page. Google's Chromium team rated the security severity as Critical, while the National Vulnerability Database (NVD) assigns a CVSS score of 8.8. The flaw affects Chrome on Windows, macOS, and Linux platforms. Successful exploitation can lead to arbitrary code execution within the browser process, breaking web content isolation and putting user data at risk.

Critical Impact
Remote attackers can trigger heap corruption through crafted HTML and user UI interaction, potentially leading to arbitrary code execution in the browser.

Affected Products

Google Chrome versions prior to 150.0.7871.47
Chrome for Microsoft Windows, Apple macOS, and Linux
Chromium-based browsers sharing the same Views implementation

Discovery Timeline

2026-06-30 - CVE-2026-13783 published to NVD
2026-07-02 - Last updated in NVD database

Technical Details for CVE-2026-13783

Vulnerability Analysis

The vulnerability resides in Chrome's Views framework, the cross-platform UI toolkit that renders browser windows, dialogs, menus, and other visual components. A use-after-free condition [CWE-416] occurs when the code continues to reference a memory region after it has been freed. In the context of Views, this typically arises when a UI object is destroyed while a pointer to it remains active elsewhere in the code path.

An attacker crafts an HTML page that triggers the vulnerable code path when the user performs specific UI gestures. These gestures may involve interactions with menus, dialogs, dropdowns, or drag operations that alter object lifetimes in the Views component. Once the freed memory is reused for attacker-controlled data, dereferencing the dangling pointer leads to heap corruption. The user interaction requirement (UI:R) makes exploitation dependent on social engineering, but does not reduce the technical impact.

Root Cause

The root cause is improper object lifetime management in the Views subsystem. A UI object is released while another code path still holds a reference, violating memory safety invariants. Refer to the Chromium Issue Tracker Entry for internal technical details as they are made public.

Attack Vector

Exploitation requires a remote attacker to host or deliver a malicious HTML page. The victim must visit the page and perform specific UI gestures the attacker anticipates. No authentication is required, and the attack originates over the network. Once heap corruption is triggered, the attacker can pivot toward arbitrary code execution within the Chrome renderer or browser process context.

No verified public exploit code or proof-of-concept is available at the time of publication. See the Google Chrome Update Announcement for the official advisory.

Detection Methods for CVE-2026-13783

Indicators of Compromise

Chrome browser processes crashing with heap corruption signatures during or shortly after visiting untrusted web pages
Unexpected child processes spawned from chrome.exe following user interaction with a web page
Outbound connections from Chrome to unfamiliar domains immediately after a crash event

Detection Strategies

Inventory endpoints running Chrome builds earlier than 150.0.7871.47 and prioritize them for patching
Monitor endpoint telemetry for Chrome renderer crashes correlated with visits to newly registered or low-reputation domains
Apply behavioral detections for post-exploitation activity such as Chrome spawning shells, scripting engines, or LOLBins

Monitoring Recommendations

Enable browser crash reporting and forward crash telemetry to a centralized logging platform
Track proxy and DNS logs for user visits to domains hosting unusual heavy client-side scripting followed by browser instability
Correlate browser process memory anomalies with subsequent process creation and network activity

How to Mitigate CVE-2026-13783

Immediate Actions Required

Update Google Chrome to version 150.0.7871.47 or later on all Windows, macOS, and Linux endpoints
Restart Chrome after applying the update to ensure the patched binaries are loaded
Audit Chromium-based browsers (Edge, Brave, Opera, Vivaldi) and apply their corresponding upstream fixes

Patch Information

Google released the fix in the Stable channel update. Deploy Chrome 150.0.7871.47 or later per the Google Chrome Update Announcement. Enterprise administrators should push the update through managed deployment tooling and validate version compliance across the fleet.

Workarounds

Restrict browsing to trusted sites via enterprise policy until patching is complete
Enable Enhanced Safe Browsing and Site Isolation in Chrome enterprise policies
Train users to avoid interacting with unexpected UI prompts on untrusted pages

bash

# Verify Chrome version on Linux endpoints
google-chrome --version

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

# Windows: check version via registry
reg query "HKLM\SOFTWARE\Google\Update\Clients\{8A69D345-D564-463C-AFF1-A69D9E530F96}" /v pv