llama-index-core vulnerable to Uncontrolled Resource Consumption
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 software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | llama-index-core | < 0.12.41 | 0.12.41 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-6208
- https://github.com/run-llama/llama_index/commit/53614e2f7913c0e86b58add9470b3c900b6c60b2
- https://github.com/run-llama/llama_index
- https://huntr.com/bounties/7d722bb6-6567-4608-8b23-f95048d7605a
- https://pypi.org/project/llama-index-core
- https://github.com/advisories/GHSA-488g-hw5f-x29p
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L- Weakness (CWE)
CWE-400- Platform
- Python (PyPI)
- Package
llama-index-core- Disclosed
- 02.02.2026
- Updated
- 11.10.2026 13:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1560 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-488g-hw5f-x29p - CC BY 4.0
Vulnerability history: llama-index-core
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 10
- First → latest
- 04.2024 02.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 3
- High 4
- Medium 3
Disclosures per year
- 2024: 3
- 2025: 6
- 2026: 1
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