CVE-2026-113248 Google CVE debrief

Who should care

Defenders responsible for Google Chrome deployments should assess exposure and apply the patch to prevent potential code execution inside the sandbox. The vulnerability affects Google Chrome's FileSystem component, and defenders should prioritize verifying and applying the patch. Defenders must review and update inventory of Google Chrome versions, and monitoring Google Chrome for updates and applying as necessary is necessary.

Why it matters

CVE-2026-113248 is a memory corruption vulnerability in Google Chrome's FileSystem component, with potential for code execution inside the sandbox. Defenders should prioritize verifying and applying the patch.

• Potential code execution inside the sandbox requires verification and patching
• Defenders must review and update inventory of Google Chrome versions
• Monitoring Google Chrome for updates and applying as necessary is necessary

Technical summary

Memory corruption in FileSystem in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability affects Google Chrome's FileSystem component, and defenders should prioritize verifying and applying the patch to prevent potential code execution. The patch is available in Google Chrome version 156.0.8078.47 or later, and defenders should review and update inventory of Google Chrome versions. Monitoring Google Chrome for updates and applying as necessary is necessary.

Defensive priority

Defenders should prioritize verifying and applying the patch to prevent potential code execution inside the sandbox.

Recommended defensive actions

• Verify and apply the patch to Google Chrome
• Monitor Google Chrome for updates and apply as necessary
• Review and update inventory of Google Chrome versions
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• 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

Evidence notes

The CVE record and source item provide limited information about the vulnerability, with Chromium security severity rated as Low. The source confidence is limited, and defenders should verify the patch application and review inventory of Google Chrome versions. The vulnerability affects Google Chrome's FileSystem component, and the patch is available in version 156.0.8078.47 or later. Defenders should prioritize verifying and applying the patch to prevent potential code execution inside the sandbox.

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.