{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "92ee0207a38ebc8af1a0e678aa92d7e7d901ea0d"
            }
          ],
          "repo": "https://github.com/unslothai/unsloth",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-94"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93348.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "2025.9.9"
          },
          {
            "fixed": "2026.8.14"
          },
          {
            "introduced": "2025.9.9"
          },
          {
            "fixed": "2026.8.20"
          }
        ],
        "source": "AFFECTED_FIELD"
      },
      {
        "extracted_events": [
          {
            "introduced": "2025.9.9"
          },
          {
            "fixed": "2026.8.14"
          },
          {
            "introduced": "2025.9.9"
          },
          {
            "fixed": "2026.8.19"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "Unsloth Zoo versions 2025.9.9 before 2026.8.14, as implemented in Unsloth 2025.9.9 through 2026.8.19, contains a code injection vulnerability in the model-loading compile path where the get_transformers_model_type() function in hf_utils.py collects model_type values from nested model configurations without enforcing a character allowlist, allowing newlines and arbitrary Python source to survive normalization. Attackers can embed a newline in a nested model_type value within a malicious model's config.json to terminate the generated import statement and execute arbitrary Python code via exec() in unsloth_compile_transformers(), achieving remote code execution as the loading user when the model is loaded for training or inference.",
  "id": "CVE-2026-93348",
  "modified": "2026-10-02T03:30:59.522347416Z",
  "published": "2026-09-28T15:09:41.524Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93348.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93348"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/unsloth-zoo-code-injection-via-model-type-in-config-json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/unslothai/unsloth-zoo/pull/1083"
    },
    {
      "type": "FIX",
      "url": "https://github.com/unslothai/unsloth-zoo/pull/1108"
    },
    {
      "type": "FIX",
      "url": "https://github.com/unslothai/unsloth/commit/92ee0207a38ebc8af1a0e678aa92d7e7d901ea0d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/unslothai/unsloth"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/unslothai/unsloth-zoo"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Unsloth Zoo Code Injection via model_type in config.json"
}