Unsafe Deserialization Vulnerability in LlamaIndex by Run Llama
CVE-2024-14021

8.4HIGH

Key Information:

Vendor

Run-llama

Status
Llama Index
Vendor
CVE Published:
12 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2024-14021?

LlamaIndex, a product by Run Llama, has a vulnerability in its BGEM3Index.load_from_disk() function. This vulnerability arises from unsafe deserialization due to the use of pickle.load() to retrieve data from a user-supplied persist directory without necessary validation. An attacker could exploit this by crafting a malicious persist directory containing a harmful pickle file, allowing them to execute arbitrary code upon loading the index from disk.

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Affected Version(s)

llama_index 0 <= 0.11.6

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2024-14021 - Proof of Concept

References

https://huntr.com/bounties/ab4ceeb4-aa85-4d1c-aaca-4eda1b...
technical-descriptionexploit
https://www.llamaindex.ai/
product
https://github.com/run-llama/llama_index
third-party-advisory

CVSS V4

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LifeTeam2024
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