{"id":"CVE-2026-62383","aliases":["GHSA-3hhw-38pf-pxj6","PYSEC-2026-3726"],"url":"https://o3.security/vulnerability/CVE-2026-62383","summary":"nltk IPIPANCorpusReader Symlink Arbitrary File Read","details":"nltk versions before 3.10.2 contain a symlink-based arbitrary file read vulnerability in IPIPANCorpusReader methods that bypass nltk.pathsec validation entirely. Attackers can place a symlink in the corpus root directory and read arbitrary files accessible to the process by calling channels(), domains(), categories(), or fileids() methods with the symlink filename.","published":"2026-08-22T14:12:36.606Z","modified":"2026-08-29T03:46:43.963779321Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"nltk","fixedVersion":"3.10.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62383.json"},{"type":"ADVISORY","url":"https://github.com/nltk/nltk/security/advisories/GHSA-3hhw-38pf-pxj6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62383"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/nltk-ipipancorpusreader-symlink-arbitrary-file-read"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-29T03:46:43.963779321Z"}}