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CVE-2026-11269 Google CVE debrief

CVE-2026-11269 is a vulnerability in Google Chrome prior to version 149.0.7827.53. The vulnerability is related to an inappropriate implementation in Extensions, which allowed an attacker in a privileged network position to execute arbitrary code inside a sandbox via a crafted Chrome Extension. The Chromium security severity of this vulnerability is rated as Low, but the CVSS score is 7.1, indicating a High severity.

Vendor
Google
Product
Chrome
CVSS
HIGH 7.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-08
Advisory published
2026-06-05
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. An attacker in a privileged network position could exploit this vulnerability to execute arbitrary code inside a sandbox.

Technical summary

The vulnerability is caused by an inappropriate implementation in Extensions in Google Chrome. This allows an attacker to execute arbitrary code inside a sandbox via a crafted Chrome Extension. The CVSS vector for this vulnerability is CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.
  • Ensure that Chrome Extensions are only installed from trusted sources.

Evidence notes

The CVE record for CVE-2026-11269 was obtained from the official CVE website [cve-org]. The vulnerability details were obtained from the National Vulnerability Database [nvd].

Official resources

CVE-2026-11269 was published on 2026-06-05T00:17:03.887Z and modified on 2026-06-08T14:18:05.583Z.