LlamaIndex vulnerability in ArxivReader class can cause MD5 hash collisions
A vulnerability in the ArxivReader class of the run-llama/llama_index repository allows for MD5 hash collisions when generating filenames for downloaded papers. This can lead to data loss as papers with identical titles but different contents may overwrite each other, preventing some papers from being processed for AI model training. The issue is resolved in llama-index-readers-papers version 0.3.1 (in llama-index 0.12.28).
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | llama-index | < 0.12.28 | 0.12.28 |
| Python (PyPI) | llama-index-readers-papers | < 0.3.1 | 0.3.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-3044
- https://github.com/run-llama/llama_index/commit/0008041e8dde8e519621388e5d6f558bde6ef42e
- https://github.com/run-llama/llama_index/commit/f69e1c0e7579228fec4cfaf716e4f951e131de77
- https://github.com/run-llama/llama_index
- https://huntr.com/bounties/80182c3a-876f-422f-8bac-38267e0345d6
- https://pypi.org/project/llama-index-readers-papers
- https://github.com/advisories/GHSA-p7j4-jwjf-5x9w
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-440- Platform
- Python (PyPI)
- Package
llama-index, llama-index-readers-papers- Disclosed
- 07.07.2025
- Updated
- 11.10.2026 14:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2025-247 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-p7j4-jwjf-5x9w - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-1569 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: llama-index-readers-papers
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
- 2
- First → latest
- 07.2025 07.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 1
Disclosures per year
- 2025: 2
- 2026: 0
-
LlamaIndex vulnerability in ArxivReader class can cause MD5 hash collisions this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.