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CVE-2026-66393

🗓️ 22 Aug 2026 14:12:42Reported by Debian Security Bug TrackerType 
debiancve
 debiancve
🔗 security-tracker.debian.org👁 3 Views

Unbounded recursion vulnerability in NLTK before 3.9.4.

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CVE-2026-66393 NLTK before 3.9.4 Denial of Service via JSONTaggedDecoder
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PT-2026-79565
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OSOS VersionArchitecturePackagePackage VersionFilename
Debian11allnltk3.5-1nltk_3.5-1_all.deb
Debian12allnltk3.8-1nltk_3.8-1_all.deb
Debian13allnltk3.9.1-2nltk_3.9.1-2_all.deb
Debian14allnltk3.10.0-1nltk_3.10.0-1_all.deb
Debian999allnltk3.10.0-1nltk_3.10.0-1_all.deb

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22 Aug 2026 14:12Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.17.5
CVSS 48.7
3