CVE-2025-6209: 
Python vulnerability analysis and mitigation

A path traversal vulnerability was discovered in run-llama/llama_index versions 0.12.27 through 0.12.40, specifically within the encode_image function in generic_utils.py. The vulnerability was disclosed on July 7, 2025, and affects the image processing functionality of the llama_index library (NVD).

The vulnerability exists in the encode_image function where improper validation or sanitization of the file path enables path traversal sequences to access files outside the intended directory. The vulnerability has been assigned a CVSS v3.0 base score of 7.5 (HIGH) with the vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating network accessibility with no required privileges or user interaction (Huntr).

The vulnerability allows an attacker to manipulate the image_path input to read arbitrary files on the server, including sensitive system files. This could lead to unauthorized access to confidential information stored on the affected system (NVD).

The vulnerability has been fixed in version 0.12.41 of run-llama/llama_index. Users are advised to upgrade to this version or later. The fix includes proper validation of image paths and URLs to ensure they point to legitimate image files (Github Commit).