CVE-2026-87439: Infoleak
Chromium CVE-2026-87439: Information leak in ServiceWorker
Other sources
Information leak in ServiceWorker in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to obtain sensitive information via a crafted HTML page. (Chromium security severity: Medium)
— 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
Chromium-based browsers (Google Chrome / Microsoft Edge)to a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
What access does an attacker need to exploit this issue?
The attacker must already have compromised the Chrome renderer process. The issue is then triggered through a crafted HTML page to obtain sensitive information.
Which Chrome versions are affected?
Google Chrome versions prior to 153.0.8010.36 are affected.
Is visiting a crafted page alone sufficient for exploitation?
No. The provided information specifies that exploitation requires a compromised renderer process in addition to a crafted HTML page.