Ghostwire

CVE-2026-62388: NLTK versions before 3.10.0 default to ENFORCE=False in pathsec.py, causing all security validation functions to emit...

HIGH CVSS 7.5 Exploit Available

Published: August 22, 2026 | Last Modified: August 22, 2026

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.

Ghostwire Analysis — What This Means Practically

High CVSS score indicates significant risk — exploitation could lead to substantial data exposure or system compromise.
Exploit code is reported to be available, increasing the likelihood of active exploitation.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

References

github.com/nltk/nltk/security/advisories/GHSA-p3m8-78j2-g5p3
www.vulncheck.com/advisories/nltk-before-insecure-default-configuration-pathsec
www.tenable.com/cve/CVE-2026-62388
www.cnnvd.org.cn/home/globalSearch?keyword=CVE-2026-62388