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PatchSiren cyber security CVE debrief

CVE-2026-11665 Google CVE debrief

CVE-2026-11665 is a vulnerability in Google Chrome's Dawn component. An out-of-bounds read issue was discovered in the Dawn component of Google Chrome on Windows. This vulnerability could allow a remote attacker to leak cross-origin data via a crafted HTML page. The issue has been addressed in Google Chrome version 149.0.7827.103 or later.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 4.3
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 on Windows, particularly those who browse the web and may encounter crafted HTML pages.

Technical summary

The vulnerability is an out-of-bounds read issue in the Dawn component of Google Chrome on Windows. This issue could allow a remote attacker to leak cross-origin data via a crafted HTML page. The Chromium security severity of this issue is High, and the CVSS score is 4.3, which is considered Medium.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.103 or later to address the vulnerability.

Evidence notes

The vulnerability was reported to Google Chrome and has been addressed in version 149.0.7827.103 or later. Users can update their Google Chrome browser to prevent exploitation of this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11665 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11665

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

  • CVE-2026-11665 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11665

    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.