CVE-2026-62385
NLTK 3.9.4 Path Traversal via FrameNet and NKJP Readers
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
NLTK versions before 3.10.0 contain a path traversal vulnerability in FramenetCorpusReader and NKJPCorpusReader that allows attackers to parse XML files outside the corpus root by supplying unsafe selectors or poisoned index state. Attackers can exploit frame_by_name, doc, lu, and header methods with crafted parameters to read arbitrary XML files accessible to the application.
| CWE | CWE-73 |
| Vendor | nltk |
| Product | nltk |
| Published | Aug 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
nltk / nltk
0 < 3.10.0