{"id":"GHSA-343m-9fqq-97c7","summary":"Duplicate Advisory: NLTK: Symlink-based arbitrary file read in IPIPANCorpusReader, bypasses nltk.pathsec entirely","details":"## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-3hhw-38pf-pxj6. This link is maintained to preserve external references.\n\n## Original Description\nnltk 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methods with the symlink filename.","modified":"2026-09-02T15:00:10.479446644Z","published":"2026-08-22T15:31:03Z","withdrawn":"2026-09-02T14:47:35Z","database_specific":{"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-09-02T14:47:35Z","nvd_published_at":"2026-08-22T15:16:17Z","cwe_ids":["CWE-22"]},"references":[{"type":"WEB","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":"WEB","url":"https://www.vulncheck.com/advisories/nltk-ipipancorpusreader-symlink-arbitrary-file-read"}],"affected":[{"package":{"name":"nltk","ecosystem":"PyPI","purl":"pkg:pypi/nltk"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.10.0"}]}],"versions":["3.10.0","3.10.1","3.10.2","3.10.3"],"database_specific":{"last_known_affected_version_range":"\u003c 3.10.2","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-343m-9fqq-97c7/GHSA-343m-9fqq-97c7.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}