CVE-2026-87611: Low severity Google Chrome vulnerability
Chromium CVE-2026-87611: Missing authorization in FileSystem
Other sources
Missing authorization in FileSystem in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process 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
Microsoft Edge (Chromium-based)to a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
What capability does an attacker need before this issue can be exploited?
The attacker must already have compromised the Chrome renderer process. The described technique then uses a crafted HTML page to obtain cross-origin data.
Which Chrome versions are affected?
Google Chrome versions prior to 153.0.8010.36 are affected. Updating to 153.0.8010.36 or later addresses the stated affected version range.
What data could be exposed after exploitation?
A compromised renderer process could obtain cross-origin data. The available information does not identify specific cross-origin sites, data types, or user actions required.