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CVE-2026-11239 Google CVE debrief

CVE-2026-11239 is a vulnerability in Google Chrome prior to version 149.0.7827.53. The issue is related to an inappropriate implementation in Extensions, which could allow a remote attacker who had compromised the renderer process to perform privilege escalation via a crafted HTML page. The Chromium security severity of this issue is rated as Low. The CVSS score for this vulnerability is 7.5, and the CVSS severity is rated as HIGH.

Vendor
Google
Product
Chrome
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-05
Advisory published
2026-06-05
Advisory updated
2026-06-05

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 Extensions in Google Chrome prior to version 149.0.7827.53. This could allow a remote attacker who had compromised the renderer process to perform privilege escalation via a crafted HTML page.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.
  • Refer to [ref-4](https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html) for more information on the stable channel update for desktop.

Evidence notes

The CVE record for CVE-2026-11239 can be found at [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-11239). The NVD detail for CVE-2026-11239 can be found at [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-11239).

Official resources

CVE-2026-11239 was published on 2026-06-05T00:17:00.067Z and modified on 2026-06-05T15:29:48.950Z.