CodeWithCJ SparkyFitness up to 1.5.x AI Service Settings chatService.ts information disclosure

Summaryinfo

A vulnerability, which was classified as problematic, has been found in CodeWithCJ SparkyFitness up to 1.5.x. This impacts an unknown function of the file SparkyFitnessServer/services/chatService.ts of the component AI Service Settings. The manipulation leads to information disclosure. This vulnerability is documented as CVE-2026-102923. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in CodeWithCJ SparkyFitness up to 1.5.x and classified as problematic. This issue affects an unknown functionality of the file SparkyFitnessServer/services/chatService.ts of the component AI Service Settings. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

SparkyFitness is a self-hosted, AI-powered health and fitness tracker for families. Prior to 1.6.0, SparkyFitnessServer/services/chatService.ts and SparkyFitnessServer/services/labelScanService.ts do not validate destinations supplied in custom AI service settings. An authenticated user saves a custom AI service URL and invokes an affected AI flow. The user can save a custom AI service URL and trigger an outbound request. Successful exploitation can send server-side POST requests with a controlled bearer value, probe internal services, and disclose the AI system prompt. This issue is fixed in version 1.6.0.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-102923 since 09/29/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 1.6.0 eliminates this vulnerability.

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Productinfo

Vendor

• CodeWithCJ

Name

• SparkyFitness

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5

Website

• Product: https://github.com/CodeWithCJ/SparkyFitness/

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