---
id: CVE-2026-21134
title: >-
  Improper authentication in Samsung Flow prior to version 4.9.22.4 allows
  adjacent attackers to access sensitive information.
summary: >-
  Improper authentication in Samsung Flow prior to version 4.9.22.4 allows
  adjacent attackers to access sensitive information.
severity: none
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T05:17:02.163'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-21134'
references:
  - url: 'https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=10'
    label: mobile.security@samsung.com
tags:
  - nvd
ingestedAt: '2026-10-12T14:50:34.088Z'
---

## Overview

Improper authentication in Samsung Flow prior to version 4.9.22.4 allows adjacent attackers to access sensitive information.

## Remediation

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