---
id: CVE-2025-6208
aliases:
  - GHSA-488g-hw5f-x29p
  - PYSEC-2026-1560
title: llama-index-core vulnerable to Uncontrolled Resource Consumption
summary: llama-index-core vulnerable to Uncontrolled Resource Consumption
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
vendor: llama-index-core
product: llama-index-core
ecosystem: pip
affected:
  - llama-index-core < 0.12.41
patched:
  - llama-index-core 0.12.41
published: '2026-02-02'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-488g-hw5f-x29p'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-6208'
  - url: >-
      https://github.com/run-llama/llama_index/commit/53614e2f7913c0e86b58add9470b3c900b6c60b2
  - url: 'https://github.com/run-llama/llama_index'
  - url: 'https://huntr.com/bounties/7d722bb6-6567-4608-8b23-f95048d7605a'
tags:
  - osv
  - pip
epss: 0.00393
epssPercentile: 0.30701
ingestedAt: '2026-07-08T18:25:45.287Z'
---

## Overview

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 packages

- `llama-index-core < 0.12.41`

## Remediation

Upgrade to a patched release:

- `llama-index-core 0.12.41`