CVE-2026-106366

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)

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html	Release Notes Vendor Advisory
https://issues.chromium.org/issues/552115620	Permissions Required

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

History

14 Oct 2026, 18:39

Type	Values Removed	Values Added
CPE		cpe:2.3:o:google:android:-:::::::* cpe:2.3:a:google:chrome::::::::
First Time		Google chrome Google android Google
References	~~() https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html -~~	() https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html - Release Notes, Vendor Advisory
References	~~() https://issues.chromium.org/issues/552115620 -~~	() https://issues.chromium.org/issues/552115620 - Permissions Required

14 Oct 2026, 13:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.4

06 Oct 2026, 19:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-06 19:18

Updated : 2026-10-14 18:39

NVD link : CVE-2026-106366

Mitre link : CVE-2026-106366

CVE.ORG link : CVE-2026-106366

JSON object : View

Products Affected

google

chrome
android

CWE

CWE-459

Incomplete Cleanup

{"id": "CVE-2026-106366", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-106366", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-14T12:37:07.482912Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.8}]}, "affected": [{"source": "chrome-cve-admin@google.com", "affectedData": [{"vendor": "Google", "product": "Chrome", "versions": [{"status": "affected", "version": "155.0.8059.39", "lessThan": "155.0.8059.39", "versionType": "custom"}]}]}], "published": "2026-10-06T19:18:05.620", "references": [{"url": "https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html", "tags": ["Release Notes", "Vendor Advisory"], "source": "chrome-cve-admin@google.com"}, {"url": "https://issues.chromium.org/issues/552115620", "tags": ["Permissions Required"], "source": "chrome-cve-admin@google.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "chrome-cve-admin@google.com", "description": [{"lang": "en", "value": "CWE-459"}]}], "descriptions": [{"lang": "en", "value": "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)"}], "lastModified": "2026-10-14T18:39:36.233", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1E74EB4-9805-4076-AADC-E1ADA0BB8EEC", "versionEndExcluding": "155.0.8059.39"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "chrome-cve-admin@google.com"}