CVE-2026-70626 - NLTK versions before 3.9.4 contain a symlink escape vulnerability in CorpusReader.open() that allows local attackers to read arbitrary files outside the corpus root. The vulnerability exists because path validation is lexical and does not account for symlink resolution, enabling attackers to place symlinks inside the corpus root to access files outside the intended boundary. - 漏洞详情

漏洞编号：CVE-2026-70626

风险等级：中危

漏洞来源：CVE

CVE 编号：CVE-2026-70626

CNNVD 编号：-

厂商/产品：- / -

影响范围：-

CWE：CWE-59

发布/更新时间：2026-08-22 / 2026-08-28

漏洞描述

NLTK versions before 3.9.4 contain a symlink escape vulnerability in CorpusReader.open() that allows local attackers to read arbitrary files outside the corpus root. The vulnerability exists because path validation is lexical and does not account for symlink resolution, enabling attackers to place symlinks inside the corpus root to access files outside the intended boundary.

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