---
id: "CVE-2026-54377"
kind: "vulnerability"
aliases: ["CVE-2026-54377"]
title: "VitaFit cloud API lets logged-in users read other accounts' health data"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["health-data", "idor", "vendor", "vitafit"]
not_affected_if: ["auth-required"]
published_at: "2026-11-04T22:18:05+00:00"
first_seen_at: "2026-11-04T23:08:48+00:00"
updated_at: "2026-11-04T23:09:55+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54377", "first_seen_at": "2026-11-04T23:08:48+00:00"}]
exploit_sources: []
---

# VitaFit cloud API lets logged-in users read other accounts' health data

The VitaFit cloud API accepts a different user_id or profile_id in requests, so an authenticated user can read another account's email, profile, body-composition report and measurement history. Predictable IDs and an account-enumeration weakness make this possible at scale.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-04T23:08:48+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-54377

## Documents

- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/vitafit-cloud-api-idor-via-profile-id-endpoints

## From the sources

VitaFit cloud API before 2026-10-30 contained an insecure direct object reference vulnerability that allows authenticated attackers to access another user's data by supplying a different user_id or profile_id to endpoints such as GET /front/profile/{profile_id}/report/ and GET /front/profile/{profile_id}/body_index_per_day/. Attackers can leverage predictable user_id and profile_id relationships combined with an account-enumeration weakness to read another account's email address, profile, body-composition report, and measurement history at scale.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_