CVE-2026-6297 Google CVE debrief

Who should care

Administrators and users of Google Chrome, particularly those in privileged network positions, should assess exposure and apply updates to prevent potential exploitation.

Why it matters

CVE-2026-6297 is a high-severity use-after-free vulnerability in Google Chrome's Proxy component. An attacker in a privileged network position could potentially exploit this vulnerability to perform a sandbox escape. Defenders should prioritize reviewing and applying Google Chrome updates to prevent potential exploitation.

• Potential sandbox escape via crafted HTML page
• Possible exploitation by attackers in privileged network positions
• Need for urgent review and application of Google Chrome updates

Technical summary

A use-after-free vulnerability exists in the Proxy component of Google Chrome prior to version 147.0.7727.101. An attacker in a privileged network position could potentially exploit this vulnerability to perform a sandbox escape via a crafted HTML page.

Defensive priority

High

Recommended defensive actions

• Review and apply Google Chrome updates to ensure version 147.0.7727.101 or later is deployed.
• Restrict access to sensitive network positions and monitor for suspicious activity.
• Implement additional security measures, such as sandboxing and isolation, to prevent potential sandbox escapes.

Evidence notes

The CVE record and NVD detail page provide information on a use-after-free vulnerability in Google Chrome's Proxy component, which could allow an attacker in a privileged network position to potentially perform a sandbox escape via a crafted HTML page.

Sources and 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.