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CVE-2026-11643 Google CVE debrief

CVE-2026-11643 is a high-severity vulnerability in Google Chrome prior to version 149.0.7827.103. The vulnerability is caused by a use after free in the Proxy component, which could allow a remote attacker to execute arbitrary code via malicious network traffic. The Chromium security severity of this vulnerability is Critical, with a CVSS score of 8.1.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-09
Advisory published
2026-06-09
Advisory updated
2026-06-09

Who should care

Users of Google Chrome prior to version 149.0.7827.103 should update to the latest version to mitigate this vulnerability.

Technical summary

The vulnerability is caused by a use after free in the Proxy component of Google Chrome. This could allow a remote attacker to execute arbitrary code via malicious network traffic.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.103 or later.

Evidence notes

The CVE-2026-11643 vulnerability was published on [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-11643) and has a detailed description on [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-11643).

Official resources

CVE-2026-11643 was published on 2026-06-09T00:16:47.057Z and modified on 2026-06-09T14:57:10.853Z.