CVE-2026-113111 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments, particularly in environments where remote access or untrusted input is common, should assess exposure and prioritize patching.

Why it matters

CVE-2026-113111 is a use-after-free vulnerability in Google Chrome's Compositing component that could allow remote code execution inside the sandbox. Defenders should prioritize patching and assess exposure in their environments.

• Potential for remote code execution inside the sandbox, requiring verification of patch application.
• Need for defenders to assess exposure in their environments, focusing on Chrome versions prior to 156.0.8078.47.
• Importance of monitoring for potential exploitation attempts targeting this vulnerability.

Technical summary

A use-after-free vulnerability exists in the Compositing component of Google Chrome prior to version 156.0.8078.47. This vulnerability could allow a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability is confirmed by CVE Program and NVD records, but details on exploitation are limited. Defenders should prioritize verifying and applying the patch and assess exposure in their environments, focusing on Chrome versions prior to 156.0.8078.47. The vulnerability's technical details are grounded in source-provided information, and defenders should review official advisories for further guidance.

Defensive priority

Defenders should prioritize verifying and applying the patch to Google Chrome, focusing on versions prior to 156.0.8078.47, and assess exposure in their environments.

Recommended defensive actions

• Verify and apply the patch to Google Chrome, updating to version 156.0.8078.47 or later.
• Assess exposure in environments using Google Chrome, focusing on versions prior to 156.0.8078.47.
• Monitor for potential exploitation attempts targeting this vulnerability.
• 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 Program and NVD records confirm the existence of a use-after-free vulnerability in Google Chrome's Compositing component. Details on exploitation and impact are limited. Defenders should verify patch application and assess exposure in their environments, focusing on Chrome versions prior to 156.0.8078.47. The CVE record does not provide explicit evidence of exploitation but confirms the vulnerability's existence.

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.