CVE-2026-62383
nltk IPIPANCorpusReader Symlink Arbitrary File Read
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
nltk versions before 3.10.2 contain a symlink-based arbitrary file read vulnerability in IPIPANCorpusReader methods that bypass nltk.pathsec validation entirely. Attackers can place a symlink in the corpus root directory and read arbitrary files accessible to the process by calling channels(), domains(), categories(), or fileids() methods with the symlink filename.
| CWE | CWE-22 |
| Vendor | nltk |
| Product | nltk |
| Published | Aug 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
nltk / nltk
3.10.0 < 3.10.2
References
Credits
🔍 LiteshGhute