🛡️ CVE-2025-7707
🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-377 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-377
Public Exploit ✅ No
Source NVD
Published 2025-10-13
Updated 2026-06-02
Modified 2025-10-13

Affected Packages

Software From version Fixed in
llama-index — 0.13.0
llamaindex 0.12.33 0.13.0

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