---
id: CVE-2026-28663
title: >-
  In buildIntentSenderForUser of LauncherAppsService.java, there is a possible
  way to launch an activity from the background due to BAL Bypass
summary: >-
  In buildIntentSenderForUser of LauncherAppsService.java, there is a possible
  way to launch an activity from the background due to BAL Bypass. This could
  lead to local escalation of privilege with no additional execution privileges
  needed…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-863
vendor: google
product: android
affected:
  - android = 16.0
  - android = 17.0
published: '2026-09-08'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T19:43:18.260'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-28663'
references:
  - url: 'https://source.android.com/docs/security/bulletin/2026/2026-09-01'
    label: security@android.com
tags:
  - nvd
  - cve.org
epss: 0.00076
epssPercentile: 0.00133
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-10T03:57:26.518925Z'
ingestedAt: '2026-09-08T19:08:49.642Z'
---

## Overview

In buildIntentSenderForUser of LauncherAppsService.java, there is a possible way to launch an activity from the background due to BAL Bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

## Affected

- `android = 16.0`
- `android = 17.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.