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CVE-2026-11174 Google CVE debrief

CVE-2026-11174 is a medium-severity vulnerability in Google Chrome prior to version 149.0.7827.53. The vulnerability is caused by an inappropriate implementation in Site Isolation, which allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. The CVSS score for this vulnerability is 5.3, indicating a medium severity level.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-06-08
Advisory published
2026-06-04
Advisory updated
2026-06-08

Who should care

Users of Google Chrome prior to version 149.0.7827.53 should update to the latest version to mitigate this vulnerability.

Technical summary

The vulnerability is caused by an inappropriate implementation in Site Isolation in Google Chrome prior to version 149.0.7827.53. This allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page.

Defensive priority

Medium

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.

Evidence notes

The CVE record and NVD detail pages provide additional information about this vulnerability.

Official resources

CVE-2026-11174 was published on [2026-06-04T23:17:24.233Z].