{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.5.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d18565fb3e4fd8c556707f91ac280a2dc3f681c1"
            }
          ],
          "repo": "https://github.com/project-monai/monai",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-89gg-p5r5-q6r4"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-502"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100846.json"
  },
  "details": "MONAI before 1.5.2 contains a deserialization of untrusted data vulnerability in the algo_from_pickle function in monai/auto3dseg/utils.py. The function reads a .pkl file and passes its contents to pickle.loads without validating the data source or content. If an application invokes algo_from_pickle on an attacker-supplied pickle file, an object defining __reduce__ is executed during deserialization, resulting in arbitrary code execution in the context of the application.",
  "id": "CVE-2026-100846",
  "modified": "2026-09-30T03:30:33.281431244Z",
  "published": "2026-09-27T01:28:41.003Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100846.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-89gg-p5r5-q6r4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100846"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/monai-before-1.5.2-remote-code-execution-via-pickle-deserialization"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
      "type": "CVSS_V4"
    }
  ],
  "summary": "MONAI before 1.5.2 Remote Code Execution via Pickle Deserialization"
}