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CVE-2026-76021: Use after free in Google Chrome

0
High
VulnerabilityCVE-2026-76021cvecve-2026-76021
Published: 08/20/2026 (08/20/2026, 20:51:20 UTC)
Source: CVE Database V5
Vendor/Project: Google
Product: Chrome

Description

CVE-2026-76021 is a use-after-free vulnerability in the DOM component of Google Chrome prior to version 151.0.7922.173. This flaw allows a remote attacker to execute arbitrary code within the sandbox by crafting a malicious HTML page. The vulnerability is rated as high severity by Chromium security. No CVSS score is provided. The vendor has published an advisory but has not explicitly stated the patch or remediation status in the provided data.

Affected software

GitHub Actionsmore threats →ai
chromium/chromium
pkg:github/chromium/chromium
Affected versions
<151.0.7922.173

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/20/2026, 21:07:53 UTC

Technical Analysis

This vulnerability involves a use-after-free condition in the Document Object Model (DOM) of Google Chrome versions before 151.0.7922.173. Exploitation requires a remote attacker to deliver a specially crafted HTML page that triggers arbitrary code execution inside the browser's sandbox environment. The issue is recognized as high severity by Chromium security. The vendor advisory URL is available but does not explicitly confirm patch availability or remediation details in the provided input.

Potential Impact

Successful exploitation allows remote code execution inside the sandbox of the affected Chrome browser, potentially enabling an attacker to run arbitrary code with the privileges of the browser process. This could lead to further compromise depending on sandbox escape techniques, but the direct impact is limited to code execution within the sandbox.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0404570826.html for current remediation guidance. Users should update to version 151.0.7922.173 or later once confirmed to be fixed. Until then, avoid visiting untrusted or suspicious websites that could host crafted HTML content.

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Technical Details

Data Version
5.2
Assigner Short Name
Chrome
Date Reserved
2026-08-18T19:28:11.070Z
Cvss Version
null
State
PUBLISHED
Remediation Level
null
Vendor Advisory Urls
[{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0404570826.html","vendor":"Google"}]

Threat ID: 6a876922acd9273b491d0673

Added to database: 08/20/2026, 20:52:50 UTC

Last enriched: 08/20/2026, 21:07:53 UTC

Last updated: 08/20/2026, 23:59:52 UTC

Views: 5

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