{"id":"CVE-2026-62385","summary":"NLTK 3.9.4 Path Traversal via FrameNet and NKJP Readers","details":"NLTK versions before 3.10.0 contain a path traversal vulnerability in FramenetCorpusReader and NKJPCorpusReader that allows attackers to parse XML files outside the corpus root by supplying unsafe selectors or poisoned index state. Attackers can exploit frame_by_name, doc, lu, and header methods with crafted parameters to read arbitrary XML files accessible to the application.","aliases":["GHSA-568f-pv23-39p4","PYSEC-2026-3728"],"modified":"2026-09-02T03:47:25.551550394Z","published":"2026-08-22T14:12:37.962Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62385.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-73"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62385.json"},{"type":"ADVISORY","url":"https://github.com/nltk/nltk/security/advisories/GHSA-568f-pv23-39p4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62385"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/nltk-path-traversal-via-framenet-and-nkjp-readers"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nltk/nltk","events":[{"introduced":"0"},{"fixed":"bd49f9011d7dc8c6a36b3c4ae71f04060c9b3fb9"}],"database_specific":{"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"3.10.0"}]}}],"versions":["v3.10.0-rc1","3.9.4","3.9.3","v3.9.2","3.9.2","3.9.1","3.9","3.8.2","3.8.1","3.8","3.7","3.6.7","3.6.6","3.6.5","3.6.2","3.6.1","3.6","3.5","3.5b1","3.4.4","3.4.3","3.4.1","3.4","3.3","3.2.5","3.2.4","3.2.3","3.2.2","3.2.1","3.2","3.1","3.0.5","3.0.4","3.0.3","3.0.2","3.0.0b1","3.0a4","2.0.1rc4","2.0.1rc3","2.0.1rc2","2.0.1rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62385.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}