CVE-2026-113081 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments, especially in environments where users access untrusted web content or have elevated privileges, should assess exposure and prioritize verification of Chrome version 156.0.8078.47 or later.

Why it matters

CVE-2026-113081 is a use-after-free vulnerability in Google Chrome's Compositing component that allows remote code execution within the sandbox via crafted HTML pages. Defenders should prioritize verifying Chrome version 156.0.8078.47 or later for all users, especially those with elevated privileges or accessing untrusted web content.

• Remote code execution within the sandbox requires verification of Chrome version 156.0.8078.47 or later for all users
• Defenders must restrict access to untrusted web content to mitigate exploitation risk
• Monitoring for suspicious user agent strings or web activity may indicate attempted exploitation
• Implementing sandboxing and isolation for high-risk users can help prevent potential impact

Technical summary

A use-after-free vulnerability exists in the Compositing component of Google Chrome prior to version 156.0.8078.47. A remote attacker can exploit this vulnerability by crafting an HTML page that triggers arbitrary code execution within the sandbox. The vulnerability is caused by the browser's failure to properly handle objects after they have been freed, allowing an attacker to execute malicious code. This vulnerability affects Google Chrome versions prior to 156.0.8078.47 and can be mitigated by verifying Chrome version 156.0.8078.47 or later for all users.

Defensive priority

Defenders should prioritize verifying Chrome version 156.0.8078.47 or later for all users, especially those with elevated privileges or accessing untrusted web content.

Recommended defensive actions

• Verify Chrome version 156.0.8078.47 or later is deployed for all users
• Restrict access to untrusted web content
• Monitor for suspicious user agent strings or web activity
• Implement sandboxing and isolation for high-risk users
• Review compensating controls for exposed systems while remediation is scheduled and verified
• 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 a use-after-free vulnerability in Google Chrome's Compositing component. A crafted HTML page can trigger arbitrary code execution within the sandbox. Affected versions are prior to 156.0.8078.47.

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.