CVE-2026-106205 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome on Android deployments should assess exposure and prioritize patching to prevent exploitation of this vulnerability. This includes reviewing and applying the available patch, ensuring that Google Chrome on Android is updated to the latest version, and monitoring for suspicious activity. Additionally, defenders should verify that Google Chrome on Android versions prior to 155.0.8059.39 are not in use and take

Why it matters

CVE-2026-106205 is a missing authorization vulnerability in Google Chrome on Android that allows a remote attacker to bypass site isolation. Defenders should prioritize patching and monitoring to prevent exploitation.

• Defenders must verify if Google Chrome on Android versions prior to 155.0.8059.39 are in use and patch or update to the latest version.
• Site isolation bypass could allow attackers to access sensitive data or perform actions on behalf of the user.
• Defenders should monitor for suspicious activity and implement additional security measures to prevent exploitation.

Technical summary

The CVE record indicates that there is a missing authorization issue in Passwords in Google Chrome on Android prior to 155.0.8059.39. This allows a remote attacker who has compromised the renderer process to bypass site isolation via a crafted HTML page. The vulnerability has a medium severity and defenders should review and apply the available patch. The issue is related to the Passwords component in Google Chrome on Android and can be exploited by a remote attacker who has compromised the renderer process. The CVE record provides additional information about the vulnerability, including its severity and potential impact.

Defensive priority

Medium

Recommended defensive actions

• Review and apply the available patch (155.0.8059.39 or later) for Google Chrome on Android to address the missing authorization vulnerability.
• Ensure that Google Chrome on Android is updated to the latest version to prevent exploitation of this vulnerability.
• Monitor Google Chrome on Android for any suspicious activity and implement additional security measures to prevent exploitation.
• Verify that Google Chrome on Android versions prior to 155.0.8059.39 are not in use.
• Implement additional security measures to prevent exploitation of this vulnerability.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record indicates that there is a missing authorization issue in Passwords in Google Chrome on Android prior to 155.0.8059.39. This allows a remote attacker who has compromised the renderer process to bypass site isolation via a crafted HTML page.

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.