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CVE-2026-11289 Google CVE debrief

CVE-2026-11289 is a MEDIUM severity vulnerability in Google Chrome prior to 149.0.7827.53. This vulnerability, described as a side-channel information leakage in Paint, allows a remote attacker to leak cross-origin data via a crafted HTML page. The vulnerability has a CVSS score of 6.5 and is considered by Chromium as having a Low security severity.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-09
Advisory published
2026-06-05
Advisory updated
2026-06-09

Who should care

Users of Google Chrome prior to version 149.0.7827.53 should update to the latest version to mitigate this vulnerability. This vulnerability could potentially allow an attacker to access sensitive cross-origin data.

Technical summary

The vulnerability is caused by a side-channel information leakage in the Paint component of Google Chrome. This issue was addressed by updating Google Chrome to version 149.0.7827.53 or later.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.

Evidence notes

Evidence for this CVE comes from the official CVE record and the National Vulnerability Database (NVD).

Official resources

CVE-2026-11289 was published on 2026-06-05T00:17:06.440Z and modified on 2026-06-09T13:58:32.577Z.