CVE-2026-17920: Use after free in Google Chrome
CVE-2026-17920 is a use-after-free vulnerability in the V8 engine of Google Chrome versions prior to 151.0.7922.72. This flaw allows an attacker who convinces a user to install a malicious Chrome extension to execute arbitrary code within the browser's sandbox. The vulnerability has a high severity rating with a CVSS score of 8.8. A fix is available in Chrome version 151.0.7922.72.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the V8 JavaScript engine component of Google Chrome before version 151.0.7922.72. Exploitation requires user interaction in the form of installing a crafted malicious Chrome extension, which then enables arbitrary code execution inside the sandbox environment. The vulnerability is classified as high severity (CVSS 8.8) due to its potential impact on confidentiality, integrity, and availability. Google has released an update to address this issue in Chrome 151.0.7922.72.
Potential Impact
Successful exploitation can lead to arbitrary code execution within the sandboxed environment of the browser, potentially compromising user data and system integrity. However, exploitation requires user interaction (installing a malicious extension). The vulnerability affects confidentiality, integrity, and availability, as reflected in the CVSS vector.
Mitigation Recommendations
A security update fixing this vulnerability is available in Google Chrome version 151.0.7922.72. Users and administrators should update to this version or later to remediate the issue. No additional mitigations are specified by the vendor advisory.
CVE-2026-17920: Use after free in Google Chrome
Description
CVE-2026-17920 is a use-after-free vulnerability in the V8 engine of Google Chrome versions prior to 151.0.7922.72. This flaw allows an attacker who convinces a user to install a malicious Chrome extension to execute arbitrary code within the browser's sandbox. The vulnerability has a high severity rating with a CVSS score of 8.8. A fix is available in Chrome version 151.0.7922.72.
CVSS v3.1
Score 8.8high
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the V8 JavaScript engine component of Google Chrome before version 151.0.7922.72. Exploitation requires user interaction in the form of installing a crafted malicious Chrome extension, which then enables arbitrary code execution inside the sandbox environment. The vulnerability is classified as high severity (CVSS 8.8) due to its potential impact on confidentiality, integrity, and availability. Google has released an update to address this issue in Chrome 151.0.7922.72.
Potential Impact
Successful exploitation can lead to arbitrary code execution within the sandboxed environment of the browser, potentially compromising user data and system integrity. However, exploitation requires user interaction (installing a malicious extension). The vulnerability affects confidentiality, integrity, and availability, as reflected in the CVSS vector.
Mitigation Recommendations
A security update fixing this vulnerability is available in Google Chrome version 151.0.7922.72. Users and administrators should update to this version or later to remediate the issue. No additional mitigations are specified by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-07-27T23:37:00.699Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html","vendor":"Google"}]
Threat ID: 6a6aa0a59c2644c7f849ba43
Added to database: 07/30/2026, 00:53:57 UTC
Last enriched: 08/06/2026, 17:04:53 UTC
Last updated: 09/12/2026, 22:01:31 UTC
Views: 35
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