CVE-2026-113256 Google CVE debrief

Who should care

Google Chrome users, particularly those with versions prior to 156.0.8078.47, should assess exposure and apply updates if necessary. This includes IT administrators, security teams, and operators who manage Chrome deployments. Vulnerability management and security teams should prioritize verifying Chrome version and applying updates.

Why it matters

CVE-2026-113256 is a use-after-free vulnerability in Google Chrome's Permissions feature that could allow remote code execution inside the sandbox. Defenders should prioritize verifying Chrome version 156.0.8078.47 or later and applying updates if necessary.

• Potential for remote code execution inside the sandbox
• Need for version verification and updates
• Monitoring for potential exploitation attempts

Technical summary

A use-after-free vulnerability exists in Google Chrome's Permissions feature 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 has a low security severity according to Chromium. Defenders should prioritize verifying Chrome version 156.0.8078.47 or later and applying updates if necessary. Technical details are limited to CVE Program and NVD records; further analysis is recommended to understand potential impact.

Defensive priority

Defenders should prioritize verifying Chrome version 156.0.8078.47 or later and applying updates if necessary.

Recommended defensive actions

• Verify Chrome version and apply updates if necessary
• Monitor for potential exploitation attempts
• Review and update incident response plans
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• 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

Evidence notes

The CVE Program and NVD records indicate a use-after-free vulnerability in Google Chrome's Permissions feature prior to version 156.0.8078.47. Chromium security severity is rated as Low. Evidence is limited to CVE Program and NVD records; further verification is recommended. Defenders should verify Chrome version and apply updates if necessary.

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.