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CVE-2026-11227 Google CVE debrief

CVE-2026-11227 is a MEDIUM severity vulnerability in Google Chrome prior to version 149.0.7827.53. This vulnerability, described as 'Incorrect security UI in Tab Hover Cards,' allows a remote attacker to perform domain spoofing via a crafted domain name. The Chromium security severity is rated as Low, with a CVSS score of 6.5.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-06-06
Advisory published
2026-06-04
Advisory updated
2026-06-06

Who should care

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

Technical summary

The vulnerability is caused by incorrect security UI in Tab Hover Cards in Google Chrome. This allows a remote attacker to perform domain spoofing via a crafted domain name. The vulnerability has a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N and is classified under CWE-451.

Defensive priority

This vulnerability has a MEDIUM severity and a CVSS score of 6.5. It is recommended to update Google Chrome to version 149.0.7827.53 or later to mitigate this vulnerability.

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.

Evidence notes

The CVE was published on 2026-06-04T23:17:30.483Z and modified on 2026-06-06T01:57:39.790Z. The vulnerability is related to Google Chrome and has a reference to the vendor advisory: [ref-4](https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html).

Official resources

CVE-2026-11227 was published on 2026-06-04T23:17:30.483Z and modified on 2026-06-06T01:57:39.790Z.