CVE-2026-113272 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments, particularly those using Extensions, should assess exposure and prioritize updating to the latest version. This includes verifying Chrome versions, monitoring for crafted HTML pages, and implementing sandboxing measures. Operators, platform administrators, and security teams should review the vulnerability and take necessary actions to prevent potential code execution.

Why it matters

CVE-2026-113272 is a memory corruption vulnerability in Google Chrome Extensions that could allow code execution inside the sandbox. Defenders should verify Chrome versions, monitor for crafted HTML pages, and implement sandboxing measures.

• Potential code execution inside the sandbox
• Verification of Chrome versions and updates required
• Monitoring for crafted HTML pages necessary
• Implementation of sandboxing and isolation measures recommended

Technical summary

The vulnerability is caused by memory corruption in Google Chrome Extensions, which allows a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability affects Google Chrome's Extensions and could allow attackers to execute code within the sandbox. Defenders should verify Chrome versions and monitor for crafted HTML pages. The vulnerability has a Medium security severity according to Chromium. Defenders should prioritize verifying Chrome versions and updating to 156.0.8078.47 or later to prevent potential code execution.

Defensive priority

Defenders should prioritize verifying Chrome versions and updating to 156.0.8078.47 or later to prevent potential code execution.

Recommended defensive actions

• Verify Chrome browser versions and update to 156.0.8078.47 or later
• Monitor for crafted HTML pages that could exploit the memory corruption vulnerability
• Implement sandboxing and isolation measures for Chrome Extensions
• 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 Extensions. The Chromium security severity is listed as Medium. This vulnerability could allow code execution inside the sandbox. Defenders should verify Chrome versions and monitor for crafted HTML pages. The CVE record was published on 2026-10-20T21:02:12.186Z and has not been modified since then. The source item provides additional details on the 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.