---
id: CVE-2026-106366
title: >-
  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
summary: >-
  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)
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-459
vendor: google
product: chrome
affected:
  - chrome < 155.0.8059.39
patched:
  - chrome 155.0.8059.39
published: '2026-10-06'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T18:39:36.233'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-106366'
references:
  - url: >-
      https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html
    label: chrome-cve-admin@google.com
  - url: 'https://issues.chromium.org/issues/552115620'
    label: chrome-cve-admin@google.com
tags:
  - nvd
  - cve.org
epss: 0.00217
epssPercentile: 0.12128
ingestedAt: '2026-10-06T19:13:33.935Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-14T12:37:07.482912Z'
---

## Overview

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)

## Affected

- `chrome < 155.0.8059.39`

## Remediation

Upgrade past the affected range:

- `chrome 155.0.8059.39`