CVE-2026-113202 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments should assess exposure and prioritize updating to the fixed version. This includes IT teams managing Chrome installations, security teams monitoring for potential exploitation attempts, and operators responsible for ensuring the security of Chrome-based systems. Additionally, security teams should review compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

Defenders should care about CVE-2026-113202 because it allows remote code execution inside the sandbox in Google Chrome prior to 156.0.8078.47. This requires verification of Chrome versions and prioritization of updates to prevent potential exploitation.

• Remote code execution inside the sandbox
• Potential for crafted HTML page exploitation
• Need for version verification and updates

Technical summary

The vulnerability is a use-after-free issue in BrowserTag in Google Chrome prior to 156.0.8078.47. This allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability is classified as Medium severity. Defenders should prioritize updating to the fixed version to prevent potential exploitation. The CVE record and source item provide additional details on the vulnerability, including its description and affected versions. The vulnerability impacts Google Chrome users who have not updated to the fixed version.

Defensive priority

High

Recommended defensive actions

• Update Google Chrome to version 156.0.8078.47 or later
• Review and verify the version of Google Chrome in use
• Monitor for potential exploitation attempts
• 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 record and source item provide details on the vulnerability, including its description and affected versions. The vulnerability is a use-after-free issue in BrowserTag in Google Chrome prior to 156.0.8078.47. The CVE record was published on 2026-10-20T21:02:21.176Z and has not been modified since then. The source item provides additional details on the vulnerability. Defenders should verify the version of Google Chrome in use and prioritize updating to the fixed version.

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.