{"id":"CVE-2026-82286","summary":"gpt-crawler Arbitrary File Write via outputFileName Parameter","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.","modified":"2026-09-02T03:31:01.700461247Z","published":"2026-08-28T16:19:04.531Z","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"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/builderio/gpt-crawler","events":[{"introduced":"0"},{"fixed":"25ab4f12486dd54a49e913449b63c58792bd6faa"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"1.5.1"},{"fixed":"1.5.1"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v1.5.0","v1.4.0","v1.3.0","v1.2.1","v1.2.0","v1.1.0","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82286.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","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"}]}