{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.2.0"
              },
              {
                "fixed": "1.2.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "65c174ee95ac6a6fd36b18b63d0b33d97e76b770"
            }
          ],
          "repo": "https://github.com/modeltc/lightllm",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103243.json"
  },
  "details": "LightLLM through 1.2.0 fails to validate image_url and audio_url parameters in multimodal endpoints, allowing unauthenticated attackers to perform server-side request forgery. Attackers can supply arbitrary URLs to fetch internal resources, with vision model processing disclosing content or error responses revealing internal network topology.",
  "id": "CVE-2026-103243",
  "modified": "2026-10-04T02:30:29.830777831Z",
  "published": "2026-09-30T14:48:54.414Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103243.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103243"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/lightllm-through-1.2.0-server-side-request-forgery-via-multimodal-endpoints"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ModelTC/LightLLM/issues/1608"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ModelTC/LightLLM"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ModelTC/lightllm"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/multimodal_params.py#L149"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/utils/multimodal_utils.py#L82-L91"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "LightLLM through 1.2.0 Server-Side Request Forgery via multimodal endpoints"
}