---
id: CVE-2026-102923
title: 'SparkyFitness: SSRF via unvalidated custom_url in AI service settings'
summary: >-
  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…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-918
vendor: CodeWithCJ
product: SparkyFitness
affected:
  - SparkyFitness < 1.6.0
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T15:53:05.454Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-102923'
references:
  - url: >-
      https://github.com/CodeWithCJ/SparkyFitness/security/advisories/GHSA-rmxj-43xh-mcm3
    label: >-
      https://github.com/CodeWithCJ/SparkyFitness/security/advisories/GHSA-rmxj-43xh-mcm3
  - url: >-
      https://github.com/CodeWithCJ/SparkyFitness/commit/0b43a37003a3fbedf4e38058130460fd4707fe29
    label: >-
      https://github.com/CodeWithCJ/SparkyFitness/commit/0b43a37003a3fbedf4e38058130460fd4707fe29
  - url: 'https://github.com/CodeWithCJ/SparkyFitness/releases/tag/v1.6.0'
    label: 'https://github.com/CodeWithCJ/SparkyFitness/releases/tag/v1.6.0'
tags:
  - cve.org
ingestedAt: '2026-10-16T17:24:46.858Z'
---

## Overview

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.

## Affected

- `SparkyFitness < 1.6.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.