{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.5.1"
              },
              {
                "fixed": "1.5.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "25ab4f12486dd54a49e913449b63c58792bd6faa"
            }
          ],
          "repo": "https://github.com/builderio/gpt-crawler",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82286.json"
  },
  "details": "gpt-crawler through 1.5.1 fails to validate the outputFileName parameter in the POST /crawl endpoint, allowing unauthenticated attackers to write arbitrary files to any filesystem path. Attackers can supply absolute paths or parent-directory segments to overwrite existing files with content sourced from attacker-controlled URLs.",
  "id": "CVE-2026-82286",
  "modified": "2026-09-02T03:31:01.700461247Z",
  "published": "2026-08-28T16:19:04.531Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82286.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82286"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/gpt-crawler-arbitrary-file-write-via-outputfilename-parameter"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/BuilderIO/gpt-crawler/issues/418"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/BuilderIO/gpt-crawler"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/BuilderIO/gpt-crawler/blob/d2245d66a5ad60bf227a55c849135394cbecc9b5/src/config.ts"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/BuilderIO/gpt-crawler/blob/d2245d66a5ad60bf227a55c849135394cbecc9b5/src/core.ts"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "gpt-crawler Arbitrary File Write via outputFileName Parameter"
}