CVE-2025-7707
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.
- Affected products
- Nltk, Llama Index
- Llamaindex
- < 0.13.0
- Fix
- Available
- CVSS 3.1
- 7.8 HIGH
- EPSS
- 0.2% (7th percentile)
- Weakness
- CWE-377
- NVD status
- Analyzed
- Published
- 2025-10-13
CVE-2025-7707 at NVD
No indexed exploits for CVE-2025-7707 yet
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No exploit for CVE-2025-7707 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.