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

Tue, 21 Oct 2025 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Llamaindex
Llamaindex llamaindex
CPEs cpe:2.3:a:llamaindex:llamaindex:*:*:*:*:*:*:*:*
Vendors & Products Llamaindex
Llamaindex llamaindex
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L'}

cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Mon, 20 Oct 2025 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Run-llama
Run-llama llama Index
Vendors & Products Run-llama
Run-llama llama Index

Tue, 14 Oct 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 14 Oct 2025 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L'}

threat_severity

Moderate


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

Updated: 2025-10-14T14:32:42.854Z

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

Link: CVE-2025-7707

cve-icon Vulnrichment

Updated: 2025-10-14T14:32:32.401Z

cve-icon NVD

Status : Analyzed

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

Modified: 2025-10-21T14:48:53.780

Link: CVE-2025-7707

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-13T16:15:08Z

Links: CVE-2025-7707 - Bugzilla