{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "leon",
          "vendor": "leon-ai",
          "versions": [
            {
              "lessThan": "50df142a89a0859e5b7283d87afdab7b01e712a2",
              "status": "affected",
              "version": "a3afdef81c8dd085b922f5a4e6b68bb9b9d802e4",
              "versionType": "git"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "George Chen"
        }
      ],
      "datePublic": "2026-10-17T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Leon before commit 50df142 contains a path traversal vulnerability in getModelFileNameFromURL() that allows attackers to write files outside the models directory via percent-encoded separators. Attackers can trick a user into running \u0027/download model\u0027 with a crafted URL containing encoded \u0027../\u0027 sequences to write attacker-controlled content to arbitrary paths writable by Leon."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-25T11:51:00.624Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Issue #593",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/leon-ai/leon/issues/593"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/leon-ai/leon"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/leon-ai/leon/blob/21baf11714f618a9367f25882e59e856d3308037/server/src/built-in-command/commands/download-command/download-command.ts#L21-L28"
        },
        {
          "tags": [
            "patch",
            "issue-tracking"
          ],
          "url": "https://github.com/leon-ai/leon/pull/594"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/leon-ai/leon/commit/50df142a89a0859e5b7283d87afdab7b01e712a2"
        },
        {
          "name": "VulnCheck Advisory: Leon before commit 50df142 Path Traversal via /download model Command",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/leon-before-commit-50df142-path-traversal-via-download-model-command"
        }
      ],
      "title": "Leon before commit 50df142 Path Traversal via /download model Command",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-116073",
    "datePublished": "2026-10-25T11:51:00.624Z",
    "dateReserved": "2026-10-25T01:57:13.048Z",
    "dateUpdated": "2026-10-25T11:51:00.624Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}