CVE-2026-87574: Infoleak
Chromium CVE-2026-87574: Information leak in ServiceWorker
Other sources
Information leak in ServiceWorker in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
— MITRE
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
Chromium/Google Chrome (ServiceWorker)to a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
Which Chrome installations are affected?
Google Chrome versions earlier than 153.0.8010.36 are affected.
What capability does an attacker need to exploit this issue?
The issue is exploitable remotely through a crafted HTML page, allowing the attacker to obtain cross-origin data.