{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:tensoropera:fedml:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "0.8.9"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "f352cfb5a59f63d4f85ede43682962a5f9ea4a6a"
            }
          ],
          "repo": "https://github.com/fedml-ai/fedml",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulDB",
    "cwe_ids": [
      "CWE-20",
      "CWE-502"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5536.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "0.8.0"
          },
          {
            "last_affected": "0.8.0"
          },
          {
            "introduced": "0.8.1"
          },
          {
            "last_affected": "0.8.1"
          },
          {
            "introduced": "0.8.2"
          },
          {
            "last_affected": "0.8.2"
          },
          {
            "introduced": "0.8.3"
          },
          {
            "last_affected": "0.8.3"
          },
          {
            "introduced": "0.8.4"
          },
          {
            "last_affected": "0.8.4"
          },
          {
            "introduced": "0.8.5"
          },
          {
            "last_affected": "0.8.5"
          },
          {
            "introduced": "0.8.6"
          },
          {
            "last_affected": "0.8.6"
          },
          {
            "introduced": "0.8.7"
          },
          {
            "last_affected": "0.8.7"
          },
          {
            "introduced": "0.8.8"
          },
          {
            "last_affected": "0.8.8"
          },
          {
            "introduced": "0.8.9"
          },
          {
            "last_affected": "0.8.9"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "A weakness has been identified in FedML-AI FedML up to 0.8.9. Affected is the function sendMessage of the file grpc_server.py of the component gRPC server. Executing a manipulation can lead to deserialization. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way.",
  "id": "CVE-2026-5536",
  "modified": "2026-07-08T05:38:20.665975962Z",
  "published": "2026-04-05T02:45:12.841Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5536.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5536"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/submit/782201"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/vuln/355289"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/AnalogyC0de/public_exp/issues/26"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/vuln/355289/cti"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X",
      "type": "CVSS_V4"
    }
  ],
  "summary": "FedML-AI FedML gRPC server grpc_server.py sendMessage deserialization"
}