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 Red Hat OpenShift AI 3.3, Red Hat OpenShift AI 3.5, Exploit Intelligence.
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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: Red Hat OpenShift AI 3.3; Red Hat OpenShift AI 3.5; 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. Will not fix / out of support: Exploit Intelligence; Red Hat Ansible Automation Platform 2.
Red Hat fixing advisory: RHSA-2026:73987, RHSA-2026:69539.
- < 3.10.3
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
- rhoai/odh-llama-stack-core-rhel9:1789121286
- rhoai/odh-ta-lmes-job-rhel9:1788935863
- RHSA-2026:73987
- RHSA-2026:69539
Official advisory · high-confidence parse· fetched 13 days 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 13 days ago·verify at source
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