CVE-2024-14021

Name: CVE-2024-14021
Creator: NVD / NIST
Published: 2026-01-12T23:15:51.413+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.4/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2024-14021 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. 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 function uses pickle.load() to deserialize multi_embed_store.pkl from a user-supplied persist_dir without validation. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

Description

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 function uses pickle.load() to deserialize multi_embed_store.pkl from a user-supplied persist_dir without validation. An attacker who can provide a crafted persist directory containing a malicious pickle file can trigger arbitrary code execution when the victim loads the index from disk.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS 4.0

8.4/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.29%

20.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Llamaindex	Llamaindex	<= 0.11.6

References

https://github.com/run-llama/llama_indexProduct
https://huntr.com/bounties/ab4ceeb4-aa85-4d1c-aaca-4eda1b71fc12Exploit, Third Party Advisory
https://www.llamaindex.ai/Product
https://www.vulncheck.com/advisories/llamaindex-bgem3index-unsafe-deserializationThird Party Advisory

Timeline

Published: Jan 12, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-14021?

How severe is CVE-2024-14021?

CVE-2024-14021 has a CVSS score of 8.4/10 (HIGH severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2024-14021?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-14021?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST