CVE-2026-54382
VitaFit Cloud API AWS IAM Misconfiguration via Cognito S3 Access
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| VitaFit Shenzhen Shine Industrial Co., Ltd. |
≥ 0; < 2026-10-30 (affected, date)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 6.3 medium |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N | CNA: VulnCheck |
| 3.1 / 7.7 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N | CNA: VulnCheck |
| 4.0 / 6.3 medium |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/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 | NVD: [email protected] |
| 3.1 / 7.7 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N | NVD: [email protected] |
Exploit evidence
- https://github.com/je-lv/vitafit-security-research
exploit · CNA: VulnCheck
References
- https://github.com/je-lv/vitafit-security-researchCNA: VulnCheck · technical-description, exploit
- https://play.google.com/store/apps/details?id=com.vt.vitafitCNA: VulnCheck · product
- https://www.vulncheck.com/advisories/vitafit-cloud-api-aws-iam-misconfiguration-via-cognito-s3-accessCNA: VulnCheck · third-party-advisory
- https://github.com/je-lv/vitafit-security-research[email protected]
- https://play.google.com/store/apps/details?id=com.vt.vitafit[email protected]
- https://www.vulncheck.com/advisories/vitafit-cloud-api-aws-iam-misconfiguration-via-cognito-s3-access[email protected]
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