{"id":"CVE-2024-39705","aliases":["GHSA-cgvx-9447-vcch","PYSEC-2024-167"],"url":"https://o3.security/vulnerability/CVE-2024-39705","summary":"ntlk unsafe deserialization vulnerability","details":"NLTK through 3.8.1 allows remote code execution if untrusted packages have pickled Python code, and the integrated data package download functionality is used. This affects, for example, averaged_perceptron_tagger and punkt.","published":"2024-06-27T00:00:00Z","modified":"2026-08-07T10:11:59.965895292Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"nltk","fixedVersion":"3.9"}],"fix":null,"references":[{"type":"WEB","url":"https://www.vicarius.io/vsociety/posts/rce-in-python-nltk-cve-2024-39705-39706"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/39xxx/CVE-2024-39705.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-39705"},{"type":"REPORT","url":"https://github.com/nltk/nltk/issues/2522"},{"type":"REPORT","url":"https://github.com/nltk/nltk/issues/3266"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T10:11:59.965895292Z"}}