CVE-2026-113133 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments should assess exposure and prioritize updating to the fixed version. This includes verifying that Chrome is updated to version 156.0.8078.47 or later to address this vulnerability. Additionally, defenders should review compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

CVE-2026-113133 is a memory corruption vulnerability in Google Chrome that allows remote code execution inside the sandbox. Defenders should prioritize updating Chrome to version 156.0.8078.47 or later to address this vulnerability.

• Remote code execution inside the sandbox requires verification of Chrome version and exposure
• Defenders must update Chrome to prevent potential exploitation
• Verify that Chrome is updated to version 156.0.8078.47 or later to address vulnerability

Technical summary

The vulnerability is caused by a memory corruption issue in PlatformIntegration in Google Chrome prior to 156.0.8078.47. A remote attacker can exploit this vulnerability by providing a crafted HTML page, which can lead to arbitrary code execution inside the sandbox. The affected product is Google Chrome, and defenders should prioritize updating Chrome to version 156.0.8078.47 or later to address this vulnerability. The vulnerability has a medium severity and defenders should assess exposure and prioritize updating to the fixed version.

Defensive priority

High

Recommended defensive actions

• Update Google Chrome to version 156.0.8078.47 or later
• Verify that the update has been applied
• Monitor for potential exploitation attempts
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the memory corruption vulnerability in Google Chrome. The vendor, Google, has provided information on the affected version and the fix. The vulnerability has a medium severity and defenders should assess exposure and prioritize updating to the fixed version. The CVE record was published on 2026-10-20T21:02:36.205Z and has not been modified since then. The source item from cve_program_cvelist_v5 provides additional context on the vulnerability. Defenders should verify the affected scope

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.