# CVE-2026-54383: VitaFit Cloud API Excessive Data Exposure via relation/search Endpoint

Status: published. Published: 2026-11-04. Updated: 2026-11-04.

VitaFit cloud API before 2026-10-30 contained an excessive data exposure vulnerability that allows any authenticated user to query the GET /front/relation/search/ endpoint and retrieve PII and health-related profile information for user records. Attackers can enumerate the user directory using overlapping alphanumeric search terms to harvest identifiers, emails, birthdays, gender, height, weight goals, phone numbers, and Firebase UIDs.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Shenzhen Shine Industrial Co., Ltd. / VitaFit: ≥ 0; < 2026-10-30 (affected, date). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 7.1 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N; source: CNA: VulnCheck

- CVSS 4.0: 7.1 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-862

## Exploit evidence

- exploit: https://github.com/je-lv/vitafit-security-research (CNA: VulnCheck)

## References

- https://github.com/je-lv/vitafit-security-research (CNA: VulnCheck; technical-description, exploit)

- https://play.google.com/store/apps/details?id=com.vt.vitafit (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/vitafit-cloud-api-excessive-data-exposure-via-relation-search-endpoint (CNA: VulnCheck; third-party-advisory)

- https://github.com/je-lv/vitafit-security-research (disclosure@vulncheck.com)

- https://play.google.com/store/apps/details?id=com.vt.vitafit (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/vitafit-cloud-api-excessive-data-exposure-via-relation-search-endpoint (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-54383; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-54383; retrieved 2026-11-05; source updated 2026-11-04

Revision: 1f73a3056b4a2da3bd40b0711e75753b526c6b0f2d7e3ff25cdb07425e03843d

Canonical: https://y2.dev/cve/CVE-2026-54383

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.