CVE-2025-7707
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-13

Last updated on: 2025-10-21

Assigner: huntr.dev

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.
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Meta Information
Published
2025-10-13
Last Modified
2025-10-21
Generated
2026-06-16
AI Q&A
2025-10-13
EPSS Evaluated
2026-06-15
NVD
CVE-2025-7707
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
llamaindex llamaindex From 0.12.33 (inc) to 0.13.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-377 Creating and using insecure temporary files can leave application and system data vulnerable to attack.
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Executive Summary

The vulnerability in llama_index version 0.12.33 is due to the NLTK data directory being set to a world-writable subdirectory of the codebase by default. This means that in multi-user environments, local users can overwrite, delete, or corrupt NLTK data files. The root cause is the use of a shared cache directory instead of a user-specific one, which allows local data tampering and denial of service.

Impact Analysis

This vulnerability can allow local users to perform denial of service by deleting or corrupting NLTK data files, tamper with data by overwriting files, or potentially escalate their privileges by exploiting the writable shared cache directory.

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