CVE-2026-91731: High severity Google Chrome vulnerability
Chromium CVE-2026-91731: Type confusion
Other sources
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases](https://chromereleases.googleblog.com/2026)) for more information.
— Microsoft
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)
— MITRE
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 153.0.4234.46 - Upgrade
Upgrade
Google Chrome / Chromium (Edge Chromium-based)to a version that resolves this vulnerability.Fixed in 153.0.8010.47
Event History
Frequently Asked Questions
What must an attacker do to exploit this issue?
The attacker must cause Chrome to process a crafted HTML page, making this a remote, web-content-driven attack vector.
Is this vulnerability fixed in current Chrome releases?
Chrome versions prior to 153.0.8010.47 are affected. Updating to version 153.0.8010.47 or later addresses the issue.
What is the security impact if exploitation succeeds?
Successful exploitation can allow arbitrary code execution inside the Chrome sandbox. The provided information does not indicate that sandbox escape or host-level code execution is possible.