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CVE-2026-81724

NLTK

Descripción

NLTK before 3.10.3 contains an uncontrolled recursion vulnerability in nltk.featstruct.FeatStructReader that allows unauthenticated attackers to cause a denial of service by supplying deeply nested feature-structure input. Attackers can craft trivial payloads with nested brackets that exceed Python-s recursion limit and raise an unhandled RecursionError, crashing applications that parse user-supplied feature structures or feature grammars.

CVSS 5.3EPSS 0.258%Riesgo 0.54
Ver fuente
Publicación
2026-08-27 17:21:03
Versiones afectadas
<3.10.3
Tipo
Librería
Última modificación
2026-08-27 20:18:54
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L