CVE-2026-113213 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments, particularly in environments where DevTools are used, should assess exposure and prioritize updates to mitigate this vulnerability.

Why it matters

CVE-2026-113213 is a memory corruption vulnerability in Google Chrome's DevTools that allows remote attackers to execute arbitrary code within the sandbox. Defenders should prioritize updating Google Chrome to version 156.0.8078.47 or later to mitigate this vulnerability. This issue is particularly relevant for defenders managing Google Chrome deployments, especially in environments where DevTools are used.

• Remote attackers may execute arbitrary code within the sandbox, potentially leading to data breaches or further exploitation
• Successful exploitation could result in unauthorized access to sensitive data or systems
• Defenders must verify Google Chrome versions and update to 156.0.8078.47 or later to mitigate this vulnerability
• Exposure to this vulnerability may require additional monitoring and security measures to detect potential exploitation attempts

Technical summary

The vulnerability exists in Google Chrome's DevTools, allowing remote attackers to execute arbitrary code within the sandbox via a crafted HTML page. This issue was addressed in Google Chrome version 156.0.8078.47. The vulnerability is caused by a memory corruption issue in the DevTools component of Google Chrome. An attacker could exploit this vulnerability by providing a specially crafted HTML page that, when opened in Google Chrome, would allow the attacker to execute arbitrary code within the sandbox. The vulnerability has a low security severity according to the Chromium security team.

Defensive priority

Defenders should prioritize updating Google Chrome to version 156.0.8078.47 or later to mitigate this vulnerability.

Recommended defensive actions

• Update Google Chrome to version 156.0.8078.47 or later
• Review and monitor DevTools usage for potential exploitation attempts
• Implement additional security measures to restrict access to sensitive data and systems
• 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 memory corruption vulnerability in Google Chrome's DevTools. The Chromium security severity is listed as Low. The vulnerability was publicly disclosed on October 20, 2026. The CVE record and source item provide details on the memory corruption vulnerability in Google Chrome's DevTools. The Chromium security severity is listed as Low. The vulnerability was publicly disclosed on October 20, 2026. The source item provides additional details on the vulnerability, including its impact

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.