CVE-2026-106366

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{"bugzilla": {"description": "chromium-browser: Incomplete cleanup in CustomTabs", "id": "2546998", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546998"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-459", "details": ["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)", "An incomplete cleanup flaw was found in the CustomTabs component of the Chromium browser.\nUpstream bug(s):\nhttps://issues.chromium.org/issues/552115620"], "name": "CVE-2026-106366", "public_date": "2026-10-06T18:41:07Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-106366\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-106366\nhttps://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html\nhttps://issues.chromium.org/issues/552115620"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Important"}

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