---
id: CVE-2026-28640
title: >-
  In checkCallerIsCertInstallerOrSelfInProfile of
  CredentialStorageActivity.java, there is a possible permission bypass due to
  improper input validation
summary: >-
  In checkCallerIsCertInstallerOrSelfInProfile of
  CredentialStorageActivity.java, there is a possible permission bypass due to
  improper input validation. This could lead to local escalation of privilege
  with no additional execution privile…
severity: none
vendor: Google
product: Android
affected:
  - Android 16
  - Android 15
  - Android 14
published: '2026-10-05'
updated: '2026-10-05'
sourceUpdated: '2026-10-05T19:17:19.957'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-28640'
references:
  - url: 'https://source.android.com/docs/security/bulletin/aaos/2026/2026-10-01'
    label: security@android.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-05T19:30:59.982Z'
---

## Overview

In checkCallerIsCertInstallerOrSelfInProfile of CredentialStorageActivity.java, there is a possible permission bypass due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

## Remediation

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