CVE-2026-79674

NLTK versions before 3.10.3 contain a path sandbox bypass vulnerability in corpus-reader constructors that allows attackers to read files outside the intended data root. Attackers can supply arbitrary corpus root paths to LinThesaurusCorpusReader and PanLexLiteCorpusReader constructors to access filesystem content and SQLite databases outside the pathsec sandbox boundary.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/nltk/nltk/security/advisories/GHSA-3gq4-3j92-5w49	Exploit Vendor Advisory
https://www.vulncheck.com/advisories/nltk-path-traversal-via-corpus-reader-constructors	Third Party Advisory
https://github.com/nltk/nltk/security/advisories/GHSA-3gq4-3j92-5w49	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-08-25 16:17

Updated : 2026-08-31 19:06

NVD link : CVE-2026-79674

Mitre link : CVE-2026-79674

CVE.ORG link : CVE-2026-79674

JSON object : View

Products Affected

nltk

nltk

CWE

CWE-73

External Control of File Name or Path

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