CVE-2026-126296
NLTK before 3.10.4 Path Traversal via save_maxent_params and load_maxent_params
CVSS Score
4.8
EPSS Score
0.0%
EPSS Percentile
0th
NLTK before 3.10.4 contains a path traversal vulnerability in save_maxent_params() and load_maxent_params() that bypasses the pathsec filesystem restriction mechanism. Attackers who control the tab_dir argument can read or overwrite model parameter files outside permitted data roots, because the functions call Python's built-in open() directly.
| CWE | CWE-73 |
| Vendor | nltk |
| Product | nltk |
| Published | Nov 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Affected Versions
nltk / nltk
0 < 3.10.4
References
Credits
🔍 F0DH1L