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CVE-2026-12259

🗓️ 03 Aug 2026 08:17:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 4 Views

nltk 3.9.4 writes package bytes to disk before checksum validation, allowing tampered downloads.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-12259
3 Aug 202607:09
attackerkb
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
3 Aug 202607:09
euvd
nvd
NVD
CVE-2026-12259
3 Aug 202608:17
nvd
osv
OSV
DEBIAN-CVE-2026-12259
3 Aug 202608:17
osv
osv
OSV
UBUNTU-CVE-2026-12259
3 Aug 202608:17
osv
ptsecurity
Positive Technologies
PT-2026-67013
3 Aug 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-12259
5 Aug 202608:43
redhatcve
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu14.04allnltk0nltk_0_all.deb
Ubuntu18.04allnltk0nltk_0_all.deb
Ubuntu20.04allnltk0nltk_0_all.deb
Ubuntu22.04allnltk0nltk_0_all.deb
Ubuntu24.04allnltk0nltk_0_all.deb
Ubuntu26.04allnltk0nltk_0_all.deb
Ubuntu16.04allnltk0nltk_0_all.deb

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07 Aug 2026 16:53Current
5.3Medium risk
Vulners AI Score5.3
CVSS 35.3
EPSS0.001
SSVC
4