CVE-2026-113112 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments, particularly in environments where exposure to untrusted web content is possible, should assess their exposure to this vulnerability and apply patches as necessary.

Why it matters

CVE-2026-113112 is a use-after-free vulnerability in Google Chrome's Extensions component that can lead to arbitrary code execution within the sandbox. Defenders should assess exposure, prioritize patching for versions prior to 156.0.8078.47, and monitor for suspicious activity. Evidence from official sources supports the vulnerability's existence and provides details on affected versions and patches.

• Potential for arbitrary code execution within the sandbox
• Need for patching to prevent exploitation
• Monitoring for suspicious activity within Chrome environments
• Verification of Chrome version 156.0.8078.47 or later

Technical summary

The CVE-2026-113112 vulnerability is a use-after-free issue in the Extensions component of Google Chrome. This vulnerability allows a remote attacker to execute arbitrary code within the sandbox of the browser by providing a crafted HTML page. The issue was addressed in Google Chrome version 156.0.8078.47. The vulnerability can be exploited by providing a specially crafted HTML page, potentially leading to arbitrary code execution within the sandbox. Defenders should prioritize assessing exposure and applying patches for Google Chrome versions prior to 156.0.8078.47, as this use-after-free vulnerability can lead to arbitrary code execution within the sandbox.

Defensive priority

Defenders should prioritize assessing exposure and applying patches for Google Chrome versions prior to 156.0.8078.47, as this use-after-free vulnerability can lead to arbitrary code execution within the sandbox.

Recommended defensive actions

• Assess exposure of Google Chrome versions prior to 156.0.8078.47
• Apply patches for Google Chrome version 156.0.8078.47 or later
• Monitor for suspicious activity within Chrome environments
• 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 vulnerability, including its description, affected versions, and references to vendor advisories. However, the record does not provide explicit information on exploitation or victim 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.