What is CVE-2026-54382?

CVE-2026-54382 is a high-severity vulnerability in Shenzhen Shine Industrial Co., Ltd. Vitafit, classified under Incorrect Privilege Assignment. CVSS score: 7.7/10. Published 2026-11-04.

How severe is CVE-2026-54382?

High severity. CVSS v3 base score is 7.7 out of 10.

Privilege escalation in Shenzhen Shine Industrial Co., Ltd. Vitafit

CVE-2026-54382

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.

Published 2026-11-04 · last modified 2026-11-05.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Shenzhen Shine Industrial Co., Ltd. Vitafit

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment

References

Researcher Disclosure (technical-description, exploit)
Google Play (product)
VulnCheck Advisory: VitaFit Cloud API AWS IAM Misconfiguration via Cognito S3 Access (third-party-advisory)

Frequently asked questions

What is CVE-2026-54382?: CVE-2026-54382 is a high-severity vulnerability in Shenzhen Shine Industrial Co., Ltd. Vitafit, classified under Incorrect Privilege Assignment. CVSS score: 7.7/10. Published 2026-11-04.
How severe is CVE-2026-54382?: High severity. CVSS v3 base score is 7.7 out of 10.