CVE-2026-106366

Medium

Description

Incomplete cleanup in CustomTabs in Google Chrome on on Android prior to 155.0.8059.39 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)

SeverityMedium
CVSS5.4
Exploit probability12. percentile0.2%
ProductGoogle Chrome
PublishedOct 6, 2026
First seenOct 6, 2026
Weakness typeCWE-459CWE-459

How to fix

Update
  • google chrome155.0.8059.39 or later

Affected products

ProductAffected versionsFixed in
google chromev < 155.0.8059.39155.0.8059.39

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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