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.
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Mon, 13 Oct 2025 16:30:00 +0000
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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 | |
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Metrics |
cvssV3_0
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Status: PUBLISHED
Assigner: @huntr_ai
Published:
Updated: 2025-10-13T16:15:08.249Z
Reserved: 2025-07-16T12:49:24.649Z
Link: CVE-2025-7707

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Status : Received
Published: 2025-10-13T17:15:35.243
Modified: 2025-10-13T17:15:35.243
Link: CVE-2025-7707

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