CVE-2026-113270 Google CVE debrief

Who should care

Google Chrome users, particularly those in organizations with Chrome installations, should assess exposure and prioritize updates to mitigate potential risks. This includes reviewing system logs for exploitation attempts and ensuring Chrome is updated to version 156.0.8078.47 or later. IT teams and security professionals should verify Chrome version exposure and review system logs for potential exploitation attempts.

Why it matters

CVE-2026-113270 is a use-after-free vulnerability in Google Chrome that could allow remote attackers to execute arbitrary code outside the sandbox. Chrome users, especially in organizational settings, should assess their exposure and update to version 156.0.8078.47 or later to mitigate potential risks.

• Potential remote code execution outside the sandbox
• Possible exploitation via crafted HTML pages
• Need for Chrome version updates to 156.0.8078.47 or later
• Review of system logs for exploitation attempts

Technical summary

A use-after-free vulnerability exists in the Internals component of Google Chrome prior to version 156.0.8078.47. This vulnerability allows a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. The vulnerability has a Medium severity rating according to Chromium. Chrome users, especially in organizational settings, should assess their exposure and update to version 156.0.8078.47 or later to mitigate potential risks. The CVE record was published on 2026-10-20T21:02:28.581Z and has not been modified since then.

Defensive priority

Medium

Recommended defensive actions

• Update Google Chrome to version 156.0.8078.47 or later
• Review system logs for potential exploitation attempts
• Assess exposure of Chrome installations in your organization
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE Program and NVD records indicate a use-after-free vulnerability in Google Chrome prior to version 156.0.8078.47. The Chromium security severity is rated as Medium. Evidence is limited to CVE Program and NVD records; further verification is recommended. Defenders should verify Chrome version exposure and review system logs for potential exploitation attempts.

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.