CVE-2026-14011: Google Chrome Out of Bounds Read Flaw

CVE-2026-14011 Overview

CVE-2026-14011 is an out-of-bounds read vulnerability in the SurfaceCapture component of Google Chrome versions prior to 150.0.7871.47. A remote attacker can trigger the flaw by serving a crafted HTML page to a targeted user. Successful exploitation allows the attacker to read memory outside the intended buffer boundary, potentially leading to information disclosure or process instability. The issue is tracked under CWE-125: Out-of-bounds Read and is classified by Chromium security as Medium severity, while NVD scores it as High.

Critical Impact
A remote attacker can read out-of-bounds memory from a Chrome renderer process by tricking a user into visiting a malicious web page, exposing sensitive memory contents and enabling further exploitation.

Affected Products

Google Chrome Desktop versions prior to 150.0.7871.47
Chromium-based browsers using the affected SurfaceCapture code path
All platforms (Windows, macOS, Linux) running vulnerable Chrome builds

Discovery Timeline

2026-06-30 - CVE-2026-14011 published to NVD
2026-07-01 - Last updated in NVD database

Technical Details for CVE-2026-14011

Vulnerability Analysis

The vulnerability resides in the SurfaceCapture implementation, a Chromium component responsible for capturing and processing rendered surface content. An out-of-bounds read [CWE-125] occurs when the component accesses memory locations outside the boundaries of an allocated buffer. Attackers can leverage this behavior to disclose adjacent memory contents from the renderer process. Disclosed memory may contain pointers, session data, or other sensitive artifacts useful for defeating Address Space Layout Randomization (ASLR) or chaining with additional bugs. The flaw requires user interaction — the victim must load an attacker-controlled HTML page — but no authentication or privileges are needed on the target system.

Root Cause

The root cause is missing or insufficient bounds validation on input processed by SurfaceCapture before memory is read. When a specifically crafted HTML page manipulates the capture pipeline with attacker-controlled parameters, the component reads beyond the allocated region. See the Chromium Issue Tracker Entry for additional technical context.

Attack Vector

Exploitation is network-based and requires only that the victim visit or be redirected to a malicious page. The attacker delivers a crafted HTML document that invokes the vulnerable SurfaceCapture code path. No credentials, prior access, or elevated privileges are required. Because the bug affects a component that processes web content, it can be triggered from any origin, including through iframes on compromised or malvertised sites.

No verified proof-of-concept code is publicly available at the time of writing. The vulnerability mechanism is described in prose based on vendor advisories; refer to the Google Chrome Desktop Update for authoritative details.

Detection Methods for CVE-2026-14011

Indicators of Compromise

Chrome renderer processes crashing with segmentation faults or SIGSEGV signals during navigation to unfamiliar domains
Browser telemetry showing repeated SurfaceCapture errors in chrome://crashes
Outbound connections from endpoints to newly registered or low-reputation domains hosting HTML content that triggers renderer instability

Detection Strategies

Inventory installed Chrome versions across managed endpoints and flag any build earlier than 150.0.7871.47
Monitor endpoint logs for unexpected Chrome renderer terminations correlated with web browsing activity
Deploy web filtering to inspect HTML payloads for anomalous invocations of screen-capture and surface APIs

Monitoring Recommendations

Enable Chrome Enterprise reporting to collect version and crash data centrally
Correlate browser crash events with proxy and DNS logs to identify malicious source URLs
Track Chromium stable channel release notes and subscribe to vendor security bulletins for follow-up advisories

How to Mitigate CVE-2026-14011

Immediate Actions Required

Update Google Chrome to version 150.0.7871.47 or later on all endpoints
Restart Chrome after updating to ensure the patched binaries are loaded into all processes
Verify the deployed version through chrome://settings/help or centralized endpoint management
Prioritize update deployment to users who browse untrusted content or handle sensitive data

Patch Information

Google released the fix in the Chrome Stable channel update 150.0.7871.47. Full release details are available in the Google Chrome Desktop Update announcement. The underlying Chromium fix is referenced in the Chromium Issue Tracker Entry.

Workarounds

Restrict browsing to trusted sites using enterprise web filtering until patches are deployed
Disable or restrict screen and surface capture permissions via Chrome Enterprise policy where feasible
Enable Site Isolation and Enhanced Safe Browsing to reduce the impact of malicious page loads

bash

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

# Enforce minimum Chrome version via Chrome Enterprise policy (JSON)
# /etc/opt/chrome/policies/managed/version_policy.json
{
  "BrowserSignin": 2,
  "SafeBrowsingProtectionLevel": 2,
  "SitePerProcess": true
}