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PYSEC-2026-3729

🗓️ 22 Aug 2026 15:16:19Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 11 Views

NLTK before 3.9.3 fails to verify file integrity in downloader module, enabling MITM attacks.

Related
Refs
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attackerkb
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CVE-2026-12259
3 Aug 202607:09
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8 Sep 202616:35
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22 Aug 202615:40
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22 Aug 202614:12
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cvelist
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CVE-2026-12259 Improper Input Validation in nltk/nltk
3 Aug 202607:09
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cvelist
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22 Aug 202614:12
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debiancve
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euvd
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EUVD-2026-52226
8 Sep 202615:27
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10 Sep 2026 11:25Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16.5
EPSS0.0014
11