CVE-2026-87429: Medium severity Google Chrome vulnerability
Chromium CVE-2026-87429: Missing authorization in ServiceWorker
Other sources
Missing authorization in ServiceWorker in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass system access restrictions via a crafted HTML page. (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
Microsoft Edge (Chromium-based)to a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
What level of access does an attacker need before this issue can be exploited?
The attacker must already have compromised the Chrome renderer process. The issue is then exploitable through a crafted HTML page to bypass system access restrictions.
Which Chrome versions should be remediated?
Google Chrome versions prior to 153.0.8010.36 are affected. Update to 153.0.8010.36 or later.