CVE-2026-54376 (CVSS 8.2)

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.

Is your site exposed to CVE-2026-54376?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

8.2

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

EPSS — Exploit Prediction

0.0012

Probability of exploitation

0.02%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-926 CWE-926

References

Other References

https://github.com/je-lv/vitafit-security-research https://play.google.com/store/apps/details?id=com.vt.vitafit https://www.vulncheck.com/advisories/vitafit-android-custom-uri-scheme-token-hijacking

Frequently Asked Questions

What is CVE-2026-54376? +

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. It has a CVSS v3.1 base score of 8.2 (HIGH).

How severe is CVE-2026-54376? +

CVE-2026-54376 has a CVSS v3.1 score of 8.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0012, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-54376? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2024-13915

Android based smartphones from vendors such as Ulefone and Krüger&Matz contain "com.pri.factorytest" application preloaded onto devices during manufacturing process. The …

CVE-2024-13916

An application "com.pri.applock", which is pre-loaded on Kruger&Matz smartphones, allows a user to encrypt any application using user-provided PIN code …

CVE-2024-13917

An application "com.pri.applock", which is pre-loaded on Kruger&Matz smartphones, allows a user to encrypt any application using user-provided PIN code …

CVE-2025-5344

Bluebird devices contain a pre-loaded kiosk application. This application exposes an unsecured service provider "com.bluebird.kiosk.launcher.IpartnerKioskRemoteService". A local attacker can bind …

CVE-2025-5345

Bluebird devices contain a pre-loaded file manager application. This application exposes an unsecured service provider "com.bluebird.system.koreanpost.IsdcardRemoteService". A local attacker can …

CVE-2025-5346

Bluebird devices contain a pre-loaded barcode scanner application. This application exposes an unsecured broadcast receiver "kr.co.bluebird.android.bbsettings.BootReceiver". A local attacker can …