nltk
GHSA-5wp5-5229-5g6q
PyPImalware9/8/2026
Description
NLTK: Missing Post-Download Integrity Verification Allows Malicious Package Injection
References (9)
https://github.com/nltk/nltk/security/advisories/GHSA-5wp5-5229-5g6qgithub_advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-12259github_advisoryhttps://github.com/nltk/nltk/pull/3449github_advisoryhttps://github.com/nltk/nltk/commit/0e26734a61094b628d93e26dc18dd7302567ac46github_advisoryhttps://github.com/nltk/nltkgithub_advisoryhttps://github.com/nltk/nltk/releases/tag/3.9.3github_advisoryhttps://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2026-3729.yamlgithub_advisoryhttps://huntr.com/bounties/659ccf6d-12d4-4d4a-84c0-078633c35a5dgithub_advisoryhttps://www.vulncheck.com/advisories/nltk-before-missing-post-download-integrity-verificationgithub_advisory
Details
EcosystemPyPI
Attack Typemalware
Published9/8/2026
Related CVEs
Aliases
CVE-2026-12259
Quick Actions