CVE-2026-91711: High severity Google Chrome vulnerability
Chromium CVE-2026-91711: Out of bounds write
Other sources
Out of bounds write in ServiceWorker 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
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
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-based) ServiceWorkerto a version that resolves this vulnerability.Fixed in 153.0.8010.47
Event History
Frequently Asked Questions
Which Chrome versions need to be remediated?
Google Chrome versions prior to 153.0.8010.47 are affected. Update Chrome to 153.0.8010.47 or later.
What does an attacker need to exploit this issue?
The issue can be triggered remotely through a crafted HTML page. Successful exploitation allows arbitrary code execution inside the Chrome sandbox.