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UNKNOWN PyPI

CVE-2026-81726

PYSEC-2026-3740 · CVE-2026-81726 · GHSA-8mgp-746c-j5xp

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Description

NLTK through 3.10.3 contains a path traversal vulnerability in model-artifact APIs that bypass pathsec enforcement by using raw file operations on caller-controlled paths. Attackers can read or write files outside allowed sandbox roots through TransitionParser, AveragedPerceptron, PerceptronTagger, and maxent parameter APIs when pathsec is enabled.

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