CVE-2026-113291 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments should assess exposure and prioritize updates to prevent potential exploitation. This includes verifying and updating Google Chrome to version 156.0.8078.47 or later, assessing exposure for users with versions prior to 156.0.8078.47, and monitoring for potential exploitation attempts targeting this vulnerability. Security teams and vulnerability management teams should also review the CVE record,

Why it matters

Defenders should prioritize verifying and updating Google Chrome to version 156.0.8078.47 or later, and assess exposure for users who access Chrome with versions prior to 156.0.8078.47.

• Verify and update Google Chrome to version 156.0.8078.47 or later to prevent potential exploitation
• Assess exposure for users who access Chrome with versions prior to 156.0.8078.47
• Monitor for potential exploitation attempts targeting this vulnerability

Technical summary

The vulnerability is a memory corruption issue in the FullScreen feature of Google Chrome prior to version 156.0.8078.47. A remote attacker could potentially execute arbitrary code inside the sandbox via a crafted HTML page. This issue impacts Google Chrome deployments, particularly those with versions prior to 156.0.8078.47. Defenders should prioritize verifying and updating Google Chrome to version 156.0.8078.47 or later, and assess exposure for users who access Chrome with versions prior to 156.0.8078.47. The Chromium security severity is listed as Low.

Defensive priority

Defenders should prioritize verifying and updating Google Chrome to version 156.0.8078.47 or later, and assess exposure for users who access Chrome with versions prior to 156.0.8078.47.

Recommended defensive actions

• Verify and update Google Chrome to version 156.0.8078.47 or later
• Assess exposure for users who access Chrome with 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 record and source item provide details on the memory corruption vulnerability in Google Chrome's FullScreen feature. The Chromium security severity is listed as Low. Evidence is limited to CVE and source-item data. Defenders should verify and update Google Chrome to version 156.0.8078.47 or later, assess exposure for users with versions prior to 156.0.8078.47, and monitor for potential exploitation attempts targeting this vulnerability.

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.