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PatchSiren cyber security CVE debrief

CVE-2026-6307 Google CVE debrief

CVE-2026-6307 is a High-severity Type Confusion vulnerability in Google Chrome's Turbofan. It allows remote attackers to execute arbitrary code inside a sandbox via a crafted HTML page. Defenders should prioritize updates to ensure version 147.0.7727.101 or later is deployed and verify sandbox configurations and security settings. This vulnerability has a CVSS score of 8.8 and is considered High severity. The CVE record was published on 2026-04-15T20:16:39.990Z and has not been modified since then.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-15
Original CVE updated
2026-10-26
Advisory published
2026-04-15
Advisory updated
2026-10-26

Who should care

Defenders responsible for Google Chrome deployments should assess exposure and prioritize updates to ensure version 147.0.7727.101 or later is deployed.

Why it matters

CVE-2026-6307 is a High-severity vulnerability in Google Chrome that allows remote attackers to execute arbitrary code inside a sandbox. Defenders should prioritize updates to ensure version 147.0.7727.101 or later is deployed and verify sandbox configurations and security settings.

  • Remote code execution inside a sandbox
  • Potential for crafted HTML page attacks
  • Requires verification of Google Chrome version and sandbox configurations

Technical summary

A Type Confusion vulnerability in Turbofan in Google Chrome prior to 147.0.7727.101 allows a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. This vulnerability is a result of improper handling of data types in the Turbofan engine, which can lead to arbitrary code execution. Defenders should prioritize updates to ensure version 147.0.7727.101 or later is deployed.

Defensive priority

High

Recommended defensive actions

  • Review and apply Google Chrome updates to ensure version 147.0.7727.101 or later is deployed
  • Monitor Google Chrome release notes and security advisories for future updates
  • Verify sandbox configurations and security settings for Google Chrome

Evidence notes

Type Confusion in Turbofan in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-6307 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-6307

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

  • CVE-2026-6307 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-6307

    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.