---
id: CVE-2026-54382
title: VitaFit Cloud API AWS IAM Misconfiguration via Cognito S3 Access
summary: >-
  VitaFit cloud API before 2026-10-30 contained an improper access control
  vulnerability in its Cognito-issued AWS role that allows authenticated
  attackers to perform s3:PutObject operations across the entire shared bucket
  instead of being…
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-266
vendor: 'Shenzhen Shine Industrial Co., Ltd.'
product: VitaFit
affected:
  - VitaFit < 2026-10-30
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T22:18:18.820Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-54382'
references:
  - url: 'https://github.com/je-lv/vitafit-security-research'
    label: Researcher Disclosure
  - url: 'https://play.google.com/store/apps/details?id=com.vt.vitafit'
    label: Google Play
  - url: >-
      https://www.vulncheck.com/advisories/vitafit-cloud-api-aws-iam-misconfiguration-via-cognito-s3-access
    label: >-
      VulnCheck Advisory: VitaFit Cloud API AWS IAM Misconfiguration via Cognito
      S3 Access
tags:
  - cve.org
ingestedAt: '2026-11-05T21:36:00.639Z'
---

## Overview

VitaFit cloud API before 2026-10-30 contained an improper access control vulnerability in its Cognito-issued AWS role that allows authenticated attackers to perform s3:PutObject operations across the entire shared bucket instead of being restricted to their own folder. Attackers can overwrite other users' objects in the shared S3 bucket using credentials obtained via CVE-2026-54378, destroying original content without triggering deletion protections.

## Affected

- `VitaFit < 2026-10-30`

## Remediation

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