CVE-2025-6208: Run-Llama Run-Llama/llama Index

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

The `SimpleDirectoryReader` component in `llama_index.core` version 0.12.23 suffers from uncontrolled memory consumption due to a resource management flaw. The vulnerability arises because the user-specified file limit (`num_files_limit`) is applied after all files in a directory are loaded into memory. This can lead to memory exhaustion and degraded performance, particularly in environments with limited resources. The issue is resolved in version 0.12.41.

Affected products

• Run-Llama Run-Llama/llama Index: before 0.12.41 (fixed in 0.12.41)

Published 2026-02-02. Last modified 2026-06-17.