{
  "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-502"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90919.json"
  },
  "details": "LightLLM through 1.2.0 contains a remote code execution vulnerability in the Config Server's unauthenticated /visual_register WebSocket endpoint that passes the first client frame directly to pickle.loads(). Attackers can reach the Config Server port and send a malicious serialized payload with a __reduce__ method to execute arbitrary code with Config Server process privileges.",
  "id": "CVE-2026-90919",
  "modified": "2026-09-16T03:30:23.739520767Z",
  "published": "2026-09-14T11:30:59.783Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90919.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90919"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-config-server-pickle-deserialization"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ModelTC/LightLLM/issues/1563"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ModelTC/lightllm"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/ModelTC/LightLLM/blob/v1.2.0/lightllm/server/config_server/api_http.py#L79-L86"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Config Server Pickle Deserialization"
}