llama-index-core insecurely handles temporary files
The llama-index-core package, up to version 0.12.44, contains a vulnerability in the get_cache_dir() function where a predictable, hardcoded directory path /tmp/llama_index is used on Linux systems without proper security controls. This vulnerability allows attackers on multi-user systems to steal proprietary models, poison cached embeddings, or conduct symlink attacks. The issue affects all Linux deployments where multiple users share the same system. The vulnerability is classified under CWE-379, CWE-377, and CWE-367, indicating insecure temporary file creation and potential race conditions.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | llama-index-core | < 0.13.0 | 0.13.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-7647
- https://github.com/run-llama/llama_index/commit/98816394d57c7f53f847ed7b60725e69d0e7aae4
- https://github.com/run-llama/llama_index
- https://huntr.com/bounties/a2baa08f-98bf-47a8-ac83-06f7411afd9e
- https://pypi.org/project/llama-index-core
- https://github.com/advisories/GHSA-cr7q-2w66-hjcm
- CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L- Weakness (CWE)
CWE-378- Platform
- Python (PyPI)
- Package
llama-index-core- Disclosed
- 27.09.2025
- Updated
- 11.10.2026 15:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1562 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-cr7q-2w66-hjcm - 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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