CVE-2026-87509: High severity Google Chrome vulnerability
Chromium CVE-2026-87509: Incorrect authorization in Updater
Other sources
Incorrect authorization in Updater in Google Chrome on on Windows prior to 153.0.8010.36 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: Low)
— NVD
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases 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 153.0.4234.32 - Upgrade
Upgrade
Google Chrome (Chromium) Updater (Windows)to a version that resolves this vulnerability.Fixed in 153.0.8010.36 - Compensating control
Use Microsoft Edge (Chromium-based) as it ingests Chromium and addresses this vulnerability.
Event History
Frequently Asked Questions
Which deployments should be prioritized for remediation?
Google Chrome installations on Windows running versions earlier than 153.0.8010.36 should be prioritized. The provided information does not identify impact on other operating systems.
What level of access does an attacker need?
An attacker needs local access and must be able to use a local program. The issue can then allow arbitrary code execution outside the Chrome sandbox.
How can I determine whether a system is affected?
Check the installed Google Chrome version on Windows. Versions prior to 153.0.8010.36 are affected according to the provided information.