High [CVE-2026-79674] Information disclosure via path traversal in corpus-reader constructors
This high-severity Red Hat Linux advisory covers CVE-2026-79674 affecting Exploit Intelligence, Lightspeed Core, OpenShift Lightspeed.
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Summary
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. A flaw was found in NLTK.
A path traversal vulnerability exists in NLTK's corpus reader constructors LinThesaurusCorpusReader and PanLexLiteCorpusReader. An attacker capable of supplying arbitrary corpus root inputs can read files outside the intended data directory.
Data exposure is restricted to files readable by the executing process user, and OS discretionary access controls or container isolation boundaries prevent privilege escalation beyond the application context. Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
Weakness: CWE-22. Affected Red Hat products: Exploit Intelligence; Lightspeed Core; OpenShift Lightspeed; Red Hat Ansible Automation Platform 2; Red Hat OpenShift AI (RHOAI).
Red Hat lists OpenShift Lightspeed as not affected. Red Hat does not currently list a fixing RHSA for this CVE.
- < 3.10.3
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Sanitize user input passed to `LinThesaurusCorpusReader` and `PanLexLiteCorpusReader` initialization arguments to enforce strict path validation against expected data root directories before loading corpus files or SQLite databases.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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