CVE-2026-84330 Google CVE debrief

Who should care

IT administrators responsible for Google Chrome deployments on Android devices, security teams monitoring for potential address bar spoofing attacks, and users of Google Chrome on Android prior to version 152.0.7977.75 should review and apply updates, monitor for suspicious activity, and verify inventory of affected installations.

Technical summary

The vulnerability, CVE-2026-84330, is a UI misrepresentation issue in FullScreen in Google Chrome on Android prior to 152.0.7977.75. It allows a remote attacker to spoof the address bar via a crafted HTML page, with a CVSS score of 5.4 and a Medium severity rating. This issue requires immediate attention to prevent potential address bar spoofing attacks.

Defensive priority

Medium severity vulnerability in Google Chrome, requiring immediate attention to prevent potential address bar spoofing attacks.

Recommended defensive actions

• Review and apply Google Chrome updates to ensure version 152.0.7977.75 or later is deployed.
• Monitor for suspicious activity and implement compensating controls to detect potential address bar spoofing attacks.
• Verify and update inventory of affected Google Chrome installations on Android devices.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

Evidence from official CVE Program record and NIST NVD detail page indicates a medium severity vulnerability in Google Chrome on Android prior to 152.0.7977.75. The vulnerability allows a remote attacker to spoof the address bar via a crafted HTML page. Defenders should verify Chrome version deployments, review compensating controls, and monitor for suspicious activity.

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.