CVE-2026-113198 Google CVE debrief

Who should care

Google Chrome users, particularly those with versions prior to 156.0.8078.47, should assess their exposure and update to the latest version. This includes operators, security teams, and vulnerability management teams responsible for maintaining Chrome deployments. They should review the CVE record and NVD entry for details and verify Chrome version to ensure they are not exposed to the vulnerability.

Why it matters

CVE-2026-113198 is a use-after-free vulnerability in Google Chrome Extensions that could allow remote attackers to execute arbitrary code inside the sandbox. Defenders should prioritize verifying Chrome version and updating to 156.0.8078.47 or later.

• Remote attackers may attempt to execute arbitrary code inside the sandbox
• Defenders should verify Chrome version and update to 156.0.8078.47 or later
• Monitoring for potential exploitation attempts is recommended

Technical summary

A use-after-free vulnerability exists in Google Chrome Extensions 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 was reported and patched, with defenders advised to verify Chrome version and update to 156.0.8078.47 or later to mitigate the risk. The CVE record and NVD entry provide details on the vulnerability, but specific version details and potential exploits require verification. Defenders should prioritize verifying Chrome version and updating to 156.0.8078.47 or later.

Defensive priority

Defenders should prioritize verifying Chrome version and updating to 156.0.8078.47 or later.

Recommended defensive actions

• Verify Chrome version and update to 156.0.8078.47 or later
• 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 record and NVD entry provide details on the use-after-free vulnerability in Google Chrome Extensions. However, specific version details and potential exploits require verification. The vulnerability exists in Google Chrome Extensions prior to version 156.0.8078.47. Defenders should verify Chrome version and update to 156.0.8078.47 or later. Monitoring for potential exploitation attempts is recommended.

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.