CVE-2026-113023 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments, particularly those with extensions enabled, should assess exposure and prioritize verification and updates. This includes reviewing compensating controls for exposed systems while remediation is scheduled and verified, and tracking exceptions, retesting remediated assets, and closing the item only after evidence is documented.

Why it matters

CVE-2026-113023 is a Low-severity vulnerability in Google Chrome's Extensions that could allow remote code execution outside the sandbox. Defenders should prioritize verification and updates to prevent potential attacks.

• Potential remote code execution outside the sandbox
• Verification of Google Chrome version and extension input validation
• Monitoring for crafted HTML page attacks

Technical summary

The vulnerability is caused by improper input validation in Google Chrome's Extensions, prior to version 156.0.8078.47. A remote attacker could potentially execute arbitrary code outside the sandbox via a crafted HTML page. The Chromium security severity is rated as Low. Defenders should prioritize verifying and updating Google Chrome to version 156.0.8078.47 or later, and review extensions for potential input validation vulnerabilities. Limited source detail suggests explicit evidence-limit language and defensive verification tasks are necessary.

Defensive priority

Defenders should prioritize verifying and updating Google Chrome to version 156.0.8078.47 or later, and review extensions for potential input validation vulnerabilities.

Recommended defensive actions

• Verify and update Google Chrome to version 156.0.8078.47 or later
• Review extensions for potential input validation vulnerabilities
• Monitor for potential crafted HTML page attacks
• 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 source item provide details on the vulnerability, affected versions, and potential impact. However, the corpus does not establish concrete exploitation or victim information. Defenders should verify and update Google Chrome to version 156.0.8078.47 or later, review extensions for potential input validation vulnerabilities, and monitor for potential crafted HTML page attacks. Limited source detail suggests explicit evidence-limit language and defensive verification tasks are 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.