TI-2026-75335 Aliases CVE-2026-102923

Server-side request forgery in SparkyFitness AI service settings

MEDIUM 58CWE-918Published 2026-10-16 · Updated 2026-10-28

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

SparkyFitness before 1.6.0 does not validate destinations supplied in custom AI service settings, which enables server-side request forgery (CWE-918). An authenticated user with low privileges can save a custom AI service URL and trigger an affected AI flow, causing the server to send outbound requests. Successful exploitation can probe internal services and disclose the AI system prompt.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00265 18th percentileScored 2026-11-07

Fix Fixed SparkyFitness (CodeWithCJ): 1.6.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
CodeWithCJ	SparkyFitness	before 1.6.0	1.6.0	Patch available	CNA

SparkyFitness VendorCodeWithCJ Affected before 1.6.0 Fixed in 1.6.0 Patch available CNA

Remediation

Upgrade SparkyFitness to version 1.6.0, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA SparkyFitness (CodeWithCJ) Fixed in 1.6.0

Timeline

2026-10-16 Threatist record created from CVE-2026-102923
2026-10-18 Priority changed: MEDIUM → LOW
2026-10-28 CISA SSVC decision points changed
2026-10-28 Priority changed: LOW → MEDIUM

References

Other 3

TI-2026-75359 OS command injection in SparkyFitness backup restore CVSS 3.1HIGH 7.2
TI-2025-40340 SparkyFitness v0.15.8.2 is vulnerable to Cross Site Scripting (XSS) via user input and LLM output. CVSS 3.1MEDIUM 6.1
TI-2026-76941 SparkyFitness missing authorization lets users delete others' food variants CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences