VitaFit: Improper Export of Android Application Components
CVE-2026-54376 is a high-severity improper export of android application components vulnerability in VitaFit from Shenzhen Shine Industrial, with a CVSS 3.1 base score of 8.2 out of 10. It can be exploited with local access to the system by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. The record lists version 2.8.1.0 as the first without the flaw, so updating VitaFit to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.12% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update VitaFit to 2.8.1.0 or a later version.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Shenzhen Shine Industrial | VitaFit | before 2.8.1.0 | 2.8.1.0 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- RequiredA user must take an action such as opening a file or link.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N. Scored by CNA (vulncheck.com).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 8.2 | High | CNA (vulncheck.com) |
| CVSS 3.1 | 8.2 | High | CNA (vulncheck.com) |
Official description
VitaFit Android application (com.vt.vitafit) before 2.8.1.0 contains an insecure custom URI scheme vulnerability that allows a malicious application to intercept Fitbit login tokens by registering the same callback scheme (vitafit://vtio.cn). Attackers can capture the 30-day Fitbit authorization token with weight scope delivered in the callback URL to read, create, and delete the victim's weight and body-fat records via the Fitbit Body API.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Export of Android Application Components
The Android application exports a component for use by other applications, but does not properly restrict which applications can launch the component or access the data it contains.
How developers prevent this class of flaw
- If they do not need to be shared by other applications, explicitly mark components with android:exported=false in the application manifest.
- If you only intend to use exported components between related apps under your control, use android:protectionLevel=signature in the xml manifest to restrict access to applications signed by you.
- Limit Content Provider permissions (read/write) as appropriate.
More Improper Export of Android Application Components vulnerabilities (CWE-926)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in VitaFit
- 9.8 Critical severity
- 7.7 High severity
- 7.5 High severity
- 9.6 Critical severity
- 8.4 High severity
- 7.5 High severity
Recent Improper Export of Android Application Components vulnerabilities
- 8.5 High severity
- 7.1 High severity
- 7.3 High severity
- 7.1 High severity
- 7.1 High severity
- 7.8 High severity
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