CVE-2026-113109 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments, especially in environments exposed to untrusted web content, should assess the vulnerability and apply the necessary updates.

Why it matters

CVE-2026-113109 is a memory corruption vulnerability in Google Chrome's API that could allow code execution inside the sandbox. Defenders should prioritize updating Chrome to version 156.0.8078.47 or later, assess exposure to untrusted web content, and monitor for potential exploitation attempts.

• Potential for code execution inside the sandbox
• Exposure to crafted HTML pages via web content
• Need for verification and application of Chrome updates
• Monitoring for exploitation attempts targeting this vulnerability

Technical summary

The vulnerability exists in the API of Google Chrome prior to version 156.0.8078.47. It allows a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. The Chromium security team has rated this issue as Medium severity. This issue was reported with a Medium severity level by the Chromium security team. Defenders should prioritize verifying and applying the update to ensure the secure version of Chrome is deployed, focusing on systems and users exposed to untrusted web content.

Defensive priority

Defenders should prioritize verifying and applying the update to ensure the secure version of Chrome is deployed, focusing on systems and users exposed to untrusted web content.

Recommended defensive actions

• Verify and apply the Chrome update to version 156.0.8078.47 or later
• Assess exposure of Chrome deployments to untrusted web content
• 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 record and source item provide details on the memory corruption vulnerability in Google Chrome's API, including the affected version and potential impact. The Chromium security team has rated this issue as Medium severity. There is no information on known or unknown affected scope, but defenders should verify and apply the update to ensure the secure version of Chrome is deployed, focusing on systems and users exposed to untrusted web content.

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.