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CVE-2026-11673 Google CVE debrief

CVE-2026-11673 is a high-severity vulnerability in Google Chrome prior to version 149.0.7827.103. This use-after-free issue in InterestGroups allows remote attackers to execute arbitrary code inside a sandbox via a crafted HTML page. The vulnerability has a CVSS score of 8.8 and is considered High severity by Chromium.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.8
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, as well as administrators and security teams responsible for managing Chrome deployments.

Technical summary

The vulnerability is a use-after-free issue in the InterestGroups component of Google Chrome. This type of vulnerability occurs when the program attempts to access memory after it has been freed, which can lead to arbitrary code execution. In this case, a remote attacker can exploit the vulnerability by providing a crafted HTML page that triggers the use-after-free condition, allowing the attacker to execute arbitrary code within the sandbox.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.103 or later to patch the vulnerability.
  • Ensure that all users of Google Chrome within your organization are updated to the latest version.

Evidence notes

The CVE record and NVD detail for CVE-2026-11673 provide official information about the vulnerability. Additional details can be found in the vendor advisory and source reference linked below.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11673 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11673

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11673 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11673

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.