CRITICAL 9.3 NVD
CVE-2026-63310
NLTK before 3.9.3 fails to verify file integrity after downloading packages and before extraction in the downloader module. Attackers can perform man-in-the-mid
NLTK before 3.9.3 fails to verify file integrity after downloading packages and before extraction in the downloader module. Attackers can perform man-in-the-middle attacks or DNS poisoning to inject malicious package contents that are extracted without validation.
References
- https://github.com/nltk/nltk/security/advisories/GHSA-5wp5-5229-5g6q
- https://www.vulncheck.com/advisories/nltk-before-missing-post-download-integrity-verificat
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-08-22 via NVD.
Risk Timeline
CVE Disclosed2026-08-22 · -1 days ago
Remediation Resources
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