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Duplicate Advisory: NLTK: Missing Post-Download Integrity Verification Allows Malicious Package Injection

🗓️ 03 Aug 2026 09:32:37Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 17 Views

NLTK 3.9.4 may extract packages before checksum validation, allowing malicious package injection.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-12259
3 Aug 202607:09
–attackerkb
circl
Circl
CVE-2026-12259
8 Sep 202616:35
–circl
cve
CVE
CVE-2026-12259
3 Aug 202607:09
–cve
cvelist
Cvelist
CVE-2026-12259 Improper Input Validation in nltk/nltk
3 Aug 202607:09
–cvelist
debiancve
Debian CVE
CVE-2026-12259
3 Aug 202607:09
–debiancve
euvd
EUVD
EUVD-2026-52226
8 Sep 202615:27
–euvd
github
Github Security Blog
NLTK: Missing Post-Download Integrity Verification Allows Malicious Package Injection
8 Sep 202615:27
–github
mend
Mend
CVE-2026-12259
3 Aug 202607:09
–mend
nvd
NVD
CVE-2026-12259
3 Aug 202608:17
–nvd
osv_cve
osv_cve
CVE-2026-63310 NLTK before 3.9.3 Missing Post-Download Integrity Verification
22 Aug 202614:12
–osv_cve
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Vulners
Node
nltknltkRange≤3.9.2pip

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01 Sep 2026 20:30Current
5.8Medium risk
Vulners AI Score5.8
CVSS 35.3
EPSS0.00101
SSVC
17