CVE-2026-113161 Google CVE debrief

Who should care

Google Chrome users, particularly those with high-risk exposure or in sensitive deployment contexts, should assess their exposure to this high-severity vulnerability and apply patches if necessary.

Why it matters

CVE-2026-113161 is a high-severity vulnerability in Google Chrome that could allow remote attackers to execute arbitrary code inside the sandbox. Chrome users should assess their exposure and apply patches if necessary.

• Potential for remote code execution inside the sandbox
• Requires verification of Chrome version and potential patching
• May require additional monitoring and security measures for WebRTC usage

Technical summary

Use after free in WebRTC in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. This high-severity vulnerability requires immediate attention from Chrome users. They should assess their exposure and apply patches if necessary to prevent potential exploitation. The vulnerability's technical details indicate a significant risk of remote code execution inside the sandbox, emphasizing the need for prompt verification and patching of affected systems.

Defensive priority

High priority for Chrome users to verify exposure and apply patches

Recommended defensive actions

• Verify Chrome version and apply patches if necessary
• Review system logs for potential exploitation attempts
• Implement additional monitoring and security measures for WebRTC usage
• 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

Official CVE Program record and NVD vulnerability detail page provide information on the use after free vulnerability in WebRTC in Google Chrome prior to 156.0.8078.47. The CVE record was published on 2026-10-20T21:01:55.893Z and has not been modified since then. Evidence is limited to CVE Program and NVD records, which indicate a high-severity vulnerability. Defenders should verify Chrome version and apply patches if necessary.

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.