The llama_index library version 0.12.33 sets the NLTK data directory to a subdirectory of the codebase by default, which is world-writable in multi-user environments. This configuration allows local users to overwrite, delete, or corrupt NLTK data files, leading to potential denial of service, data tampering, or privilege escalation. The vulnerability arises from the use of a shared cache directory instead of a user-specific one, making it susceptible to local data tampering and denial of service.
History

Mon, 13 Oct 2025 16:30:00 +0000

Type Values Removed Values Added
Description The llama_index library version 0.12.33 sets the NLTK data directory to a subdirectory of the codebase by default, which is world-writable in multi-user environments. This configuration allows local users to overwrite, delete, or corrupt NLTK data files, leading to potential denial of service, data tampering, or privilege escalation. The vulnerability arises from the use of a shared cache directory instead of a user-specific one, making it susceptible to local data tampering and denial of service.
Title World-Writable NLTK Cache Directory Vulnerability in run-llama/llama_index
Weaknesses CWE-377
References
Metrics cvssV3_0

{'score': 7.1, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: @huntr_ai

Published:

Updated: 2025-10-13T16:15:08.249Z

Reserved: 2025-07-16T12:49:24.649Z

Link: CVE-2025-7707

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-10-13T17:15:35.243

Modified: 2025-10-13T17:15:35.243

Link: CVE-2025-7707

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.