CVE-2026-91731: Type confusion in Google Chrome
Type confusion in Compositing in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
AI Analysis
Technical Summary
CVE-2026-91731 is a type confusion vulnerability in the Compositing module of Google Chrome versions before 153.0.8010.47. Exploitation requires a remote attacker to craft a malicious HTML page that triggers the flaw, enabling arbitrary code execution inside the browser's sandbox environment. This vulnerability was publicly disclosed and addressed by Google in a stable channel update.
Potential Impact
Successful exploitation can lead to arbitrary code execution within the sandboxed environment of Google Chrome, potentially allowing an attacker to execute malicious code remotely. The sandbox limits the scope of impact, but code execution inside it remains a significant security risk.
Mitigation Recommendations
A fix is available in Google Chrome version 153.0.8010.47. Users and administrators should update to this version or later to remediate the vulnerability. Refer to the official Google Chrome stable channel update advisory at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html for details.
CVE-2026-91731: Type confusion in Google Chrome
Description
Type confusion in Compositing in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS v3.1
Score 8.8high
Affected software
Chrome
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-91731 is a type confusion vulnerability in the Compositing module of Google Chrome versions before 153.0.8010.47. Exploitation requires a remote attacker to craft a malicious HTML page that triggers the flaw, enabling arbitrary code execution inside the browser's sandbox environment. This vulnerability was publicly disclosed and addressed by Google in a stable channel update.
Potential Impact
Successful exploitation can lead to arbitrary code execution within the sandboxed environment of Google Chrome, potentially allowing an attacker to execute malicious code remotely. The sandbox limits the scope of impact, but code execution inside it remains a significant security risk.
Mitigation Recommendations
A fix is available in Google Chrome version 153.0.8010.47. Users and administrators should update to this version or later to remediate the vulnerability. Refer to the official Google Chrome stable channel update advisory at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html for details.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-09-14T22:52:21.856Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html","vendor":"Google"}]
Threat ID: 6aa9aed655bf5e2cf55add21
Added to database: 09/15/2026, 20:47:18 UTC
Last enriched: 09/15/2026, 21:02:39 UTC
Last updated: 09/16/2026, 04:01:23 UTC
Views: 6
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