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Medium

LlamaIndex vulnerability in ArxivReader class can cause MD5 hash collisions

  • Disclosed: 07.07.2025
  • Updated: 11.10.2026 14:17

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.

PlatformPackageVulnerable versionsFixed in
Python (PyPI) llama-index < 0.12.28 0.12.28
Python (PyPI) llama-index-readers-papers < 0.3.1 0.3.1

References

CVSS score 5.3/10
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

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (22) in the archive
Total entries
22
First → latest
08.2023 01.2026
Without a fix
2
Exploited in attacks
0

Severity breakdown

  • Critical 5
  • High 11
  • Medium 6

Disclosures per year

Severity:
  1. LlamaIndex (run-llama/llama_index) versions up to and including 0.12.2 contain an uncontrolled resource consumption vulnerability in the VannaPack VannaQueryEngine implementation. The custom_query() l
    High · 7.5 CVE-2024-58339 < 0.12.3 0.12.3
  2. LlamaIndex (run-llama/llama_index) versions up to and including 0.11.6 contain an unsafe deserialization vulnerability in BGEM3Index.load_from_disk() in llama_index/indices/managed/bge_m3/base.py. The
    High · 7.8 CVE-2024-14021 < 0.11.7 0.11.7
  3. llama-index has Insecure Temporary File
    High · 7.1 CVE-2025-7707 < 0.13.0 0.13.0
  4. LlamaIndex vulnerable to Path Traversal attack through its encode_image function
    High · 7.5 CVE-2025-6209 >= 0.12.27, < 0.12.41 0.12.41
  5. LlamaIndex has an XML Entity Expansion vulnerability in its sitemap parser
    High · 7.5 CVE-2025-3225 >= 0.12.21, < 0.12.29 0.12.29
  6. LlamaIndex vulnerability in ArxivReader class can cause MD5 hash collisions this entry
    Medium · 5.3 CVE-2025-3044 < 0.12.28 0.12.28
  7. LlamaIndex is vulnerable to Path Traversal attack through its ObsidianReader class
    High · 7.5 CVE-2025-3046 >= 0.12.23, < 0.12.28 0.12.28
  8. llama_index vulnerable to SQL Injection
    Critical · 9.8 CVE-2025-1793 < 0.12.28 0.12.28
  9. LlamaIndex DuckDBVectorStore vulnerable to SQL injection through ref_doc_id
    Critical · 9.8 CVE-2025-1750 >= 0.12.19, < 0.12.21 0.12.21
  10. LLama-Index CLI OS command injection vulnerability
    High · 7.8 CVE-2025-1753 <= 0.12.20 no fix
  11. LlamaIndex Vulnerable to Denial of Service (DoS)
    High · 7.5 CVE-2025-1752 >= 0.12.15, < 0.12.21 0.12.21
  12. LlamaIndex vulnerable to Creation of Temporary File in Directory with Insecure Permissions
    High · 7.1 CVE-2024-12911 < 0.12.3 0.12.3
  13. LlamaIndex Improper Handling of Exceptional Conditions vulnerability
    High · 7.5 CVE-2024-12704 <= 0.12.5 no fix
  14. LlamaIndex includes an exec call for `import {cls_name}`
    Critical · 9.8 CVE-2024-45201 < 0.10.38 0.10.38
  15. RunGptLLM class in LlamaIndex has a command injection
    High · 8.8 CVE-2024-4181 >= 0.9.47, < 0.10.13 0.10.13
  16. LlamaIndex (aka llama_index) through 0.9.34 allows SQL injection via the Text-to-SQL feature in NLSQLTableQueryEngine, SQLTableRetrieverQueryEngine, NLSQLRetriever, RetrieverQueryEngine, and PGVectorS
    Critical · 9.8 CVE-2024-23751 < 0.9.35 0.9.35
  17. An issue in llama_index v.0.7.13 and before allows a remote attacker to execute arbitrary code via the `exec` parameter in PandasQueryEngine function.
    Critical · 9.8 CVE-2023-39662 < 0.7.14 0.7.14

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