LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Visual-Only RPyC Service

{
  "id": "edde44bcd175da9e5bde973a465b5352fb3a79b45986f0c110d5d8cdc75444fd",
  "url": "https://osv.dev/vulnerability/CVE-2026-103395",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Visual-Only RPyC Service",
    "summary": "LightLLM through 1.2.0 visual_only deployments expose an unauthenticated RPyC service with allow_pickle enabled that deserializes attacker-supplied arguments in the remote_infer_images method. Attackers can reach the visual RPyC port and pass objects with __reduce__ methods to execute arbitrary code with service account privileges.",
    "evidence": "osv:CVE-2026-103395",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-103395",
      "aliases": [
        "CVE-2026-103395"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "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"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/modeltc/lightllm",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "65c174ee95ac6a6fd36b18b63d0b33d97e76b770"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.2.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.2.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.2.0",
            "v1.1.0",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103395.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.958933966Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103395.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-103395",
        "https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-visual-only-rpyc-service",
        "https://github.com/ModelTC/LightLLM/issues/1610",
        "https://github.com/ModelTC/LightLLM",
        "https://github.com/ModelTC/lightllm",
        "https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/visualserver/objs.py#L6-L11",
        "https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/visualserver/visual_only_manager.py#L138-L140"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-502"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103395.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-103395",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489098,
  "published_at": "2026-09-30T14:48:55.734+00:00"
}