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PYSEC-2026-3751

🗓️ 26 Aug 2026 11:16:40Reported by Python Packaging AdvisoryType 
pypa
 pypa
🔗 github.com👁 6 Views

ReDoS in NLTK before 3.10.3 via unvalidated regex in tgrep module causing CPU saturation.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-80206
2 Sep 202615:07
circl
cve
CVE
CVE-2026-80206
26 Aug 202610:28
cve
cvelist
Cvelist
CVE-2026-80206 NLTK 3.10.2 Regular Expression Denial of Service via tgrep
26 Aug 202610:28
cvelist
debiancve
Debian CVE
CVE-2026-80206
26 Aug 202610:28
debiancve
euvd
EUVD
EUVD-2026-66397
31 Aug 202621:31
euvd
github
Github Security Blog
Duplicate Advisory: ReDoS in nltk.tgrep via unvalidated user-supplied regular expressions
31 Aug 202621:31
github
nvd
NVD
CVE-2026-80206
26 Aug 202611:16
nvd
osv
OSV
DEBIAN-CVE-2026-80206
26 Aug 202611:16
osv
osv
OSV
PYSEC-2026-3751
26 Aug 202611:16
osv
osv
OSV
UBUNTU-CVE-2026-80206
26 Aug 202611:16
osv
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Vulners
Node
pypinltkRange03.10.3

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02 Sep 2026 08:34Current
5.9Medium risk
Vulners AI Score5.9
CVSS 48.2
CVSS 3.15.9
EPSS0.00264
SSVC
6