---
id: CVE-2026-106405
title: >-
  Race condition in CustomTabs in Google Chrome on on Android prior to
  155.0.8059.39 allowed a local attacker to bypass web origin policy via a
  co-installed app
summary: >-
  Race condition in CustomTabs in Google Chrome on on Android prior to
  155.0.8059.39 allowed a local attacker to bypass web origin policy via a
  co-installed app. (Chromium security severity: Medium)
severity: medium
cvss: 6
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N'
cwe:
  - CWE-367
vendor: google
product: chrome
affected:
  - chrome < 155.0.8059.39
patched:
  - chrome 155.0.8059.39
published: '2026-10-06'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T14:26:34.313'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-106405'
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/517150523'
    label: chrome-cve-admin@google.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-106405.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-106405'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-106405'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-106405'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00065
epssPercentile: 0.00016
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-08T15:46:13.844675Z'
scores:
  nvd: 6
  vendor: 6.5
  adp: 6
ingestedAt: '2026-10-06T19:13:33.899Z'
---

## Overview

Race condition in CustomTabs in Google Chrome on on Android prior to 155.0.8059.39 allowed a local attacker to bypass web origin policy via a co-installed app. (Chromium security severity: Medium)

## Affected

- `chrome < 155.0.8059.39`

## Remediation

Upgrade past the affected range:

- `chrome 155.0.8059.39`

## Vendor advisories

- **Red Hat VEX** · updated 2026-10-09 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-106405.json)