CVE-2026-113101 Google CVE debrief

Who should care

Administrators and users of Google Chrome should assess their exposure and update to the latest version to mitigate this vulnerability. The vulnerability affects Google Chrome prior to version 156.0.8078.47, and defenders should prioritize updating Chrome to version 156.0.8078.47 or later. The vulnerability's impact on the organization depends on the Chrome version usage and the update process in place.

Why it matters

CVE-2026-113101 is a high-severity use-after-free vulnerability in Google Chrome's SiteIsolation component. It allows remote attackers to execute arbitrary code inside the sandbox via crafted HTML pages. Defenders should prioritize updating Chrome to version 156.0.8078.47 or later and verify the update process within their organization.

• Remote attackers may execute arbitrary code inside the Chrome sandbox
• Successful exploitation requires user interaction via a crafted HTML page
• Defenders should prioritize updating Chrome to version 156.0.8078.47 or later
• Verification of Chrome version usage and update process is necessary

Technical summary

A use-after-free vulnerability exists in the SiteIsolation component of Google Chrome prior to version 156.0.8078.47. This vulnerability allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability is a high-severity issue that requires immediate attention. Defenders should prioritize updating Chrome to version 156.0.8078.47 or later and verify the update process within their organization. The vulnerability's technical details are based on the CVE Program and NVD records.

Defensive priority

High

Recommended defensive actions

• Update Google Chrome to version 156.0.8078.47 or later
• Review and verify the update process for Chrome in your organization
• Monitor Chrome version usage and ensure all instances are updated
• 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 record and NVD entry provide details on the vulnerability, including its description and affected versions. The vulnerability is a use-after-free issue in the SiteIsolation component of Google Chrome prior to version 156.0.8078.47. The CVE Program and NVD records confirm the vulnerability's existence and provide information on its severity and impact. The vulnerability allows remote attackers to execute arbitrary code inside the sandbox via crafted HTML pages.

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.