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CVE-2026-106405 is a race condition in the CustomTabs component of Google Chrome for Android before version 155.0.8059.39. A local attacker can exploit the vulnerability through a co-installed Android application to bypass Chrome's web origin policy, undermining security boundaries between web origins.
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No public exploit code observed for this vulnerability.
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2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A race condition in Chrome's Android CustomTabs allows a local attacker to bypass web origin policy through a co-installed application. The Nessus advisory also flags the Debian Chromium package as affected without a vendor-supplied patch. Chromium rates the flaw Medium, while the plugin assigns Critical severity and CVSS v3 9.8; that network-based scoring conflicts with the description of a local attack.
A medium-severity race condition in Google Chrome's CustomTabs on Android, affecting versions before 155.0.8059.39. A local attacker could use a co-installed app to bypass web origin policy.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.