High severity7.5NVD Advisory· Published Aug 22, 2026
CVE-2026-62388
CVE-2026-62388
Description
NLTK versions before 3.10.0 default to ENFORCE=False in pathsec.py, causing all security validation functions to emit warnings instead of raising exceptions. Attackers can bypass path traversal and pickle deserialization protections by exploiting the disabled security controls that are only active when manually enabled.
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Affected products
1Patches
Vulnerability mechanics
References
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