SparkyFitness: SSRF via unvalidated custom_url in AI service settings

{
  "id": "419a709e8553451166bfcb84f2d9413148cf0f600fa6e8e706372e1e3d5e496f",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-102923",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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 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.",
    "evidence": "cve:CVE-2026-102923",
    "products": [
      {
        "name": {
          "value": "SparkyFitness",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-102923",
      "aliases": [
        "CVE-2026-102923"
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 5.4,
            "attackVector": "NETWORK",
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
            "integrityImpact": "LOW",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "NONE",
            "privilegesRequired": "LOW",
            "confidentialityImpact": "LOW"
          }
        }
      ],
      "affected": [
        {
          "vendor": "CodeWithCJ",
          "product": "SparkyFitness",
          "versions": [
            {
              "status": "affected",
              "version": "< 1.6.0"
            }
          ]
        }
      ],
      "modified": "2026-10-28T18:20:33.855Z",
      "provider": "cve",
      "references": [
        "https://github.com/CodeWithCJ/SparkyFitness/security/advisories/GHSA-rmxj-43xh-mcm3",
        "https://github.com/CodeWithCJ/SparkyFitness/commit/0b43a37003a3fbedf4e38058130460fd4707fe29",
        "https://github.com/CodeWithCJ/SparkyFitness/releases/tag/v1.6.0"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-102923",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-28T18:20:24.682661Z"
                  }
                }
              }
            ],
            "references": [
              {
                "url": "https://github.com/CodeWithCJ/SparkyFitness/security/advisories/GHSA-rmxj-43xh-mcm3",
                "tags": [
                  "exploit"
                ]
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-28T18:20:33.855Z"
            }
          }
        ],
        "cna": {
          "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
          "shortName": "GitHub_M",
          "dateUpdated": "2026-10-16T15:53:05.454Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-102923",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 472581,
  "published_at": "2026-10-16T15:53:05.454+00:00"
}