CVE-2026-106326 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome on Android devices should assess exposure and prioritize updates to prevent potential bypass of system access restrictions. This includes IT teams managing Chrome deployments, security teams responsible for vulnerability management, and operators of Android devices using Chrome. They should verify Chrome versions on Android devices to ensure they are up to date and review compensating controls for exposed

Why it matters

CVE-2026-106326 is a medium-severity confused deputy vulnerability in Google Chrome on Android that allows local attackers to bypass system access restrictions. Defenders should prioritize updating Chrome to version 155.0.8059.39 or later to prevent potential exploitation.

• Local attackers may bypass system access restrictions on Android devices running vulnerable Chrome versions
• Successful exploitation requires a co-installed app on the Android device
• Defenders should verify Chrome versions on Android devices to ensure they are up to date
• Remediation involves updating Google Chrome to version 155.0.8059.39 or later

Technical summary

The vulnerability is a confused deputy issue in the UI of Google Chrome on Android, allowing a local attacker to bypass system access restrictions into a privileged page via a co-installed app. This issue was reported by the Chromium security team with a medium severity rating. The issue highlights the importance of keeping Chrome up to date on Android devices. The vulnerability affects Google Chrome on Android prior to version 155.0.8059.39. A co-installed app can be used to exploit this vulnerability, which allows a local attacker to bypass system access restrictions.

Defensive priority

Defenders should prioritize updating Google Chrome on Android devices to version 155.0.8059.39 or later to prevent potential bypass of system access restrictions.

Recommended defensive actions

• Update Google Chrome on Android devices to version 155.0.8059.39 or later
• Verify that Chrome is up to date on all Android devices
• Monitor Chrome releases for future updates
• 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 vulnerability, including its description, affected versions, and references to additional information. The vulnerability is a confused deputy issue in the UI of Google Chrome on Android, allowing a local attacker to bypass system access restrictions into a privileged page via a co-installed app. This issue was reported by the Chromium security team with a medium severity rating. Defenders should verify Chrome versions on Android devices to ensure they are up to date and review the

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.