CVE-2024-14021Public exploit

Arbitrary code execution via untrusted pickle loading

Published Jan 12, 2026 · Updated Jan 12, 2026

Unsafe deserialization in LlamaIndex 0 through 0.11.6 allows local users to execute arbitrary code through a crafted persisted index. The BGEM3Index.load_from_disk() method passes multi_embed_store.pkl from the caller-supplied persist_dir directly to pickle.load() without validation. Execution requires a local user to supply the malicious persist directory and an application user to load that index, after which the payload runs with the application's privileges.

CVSS severity8.4
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe deserialization in LlamaIndex 0 through 0.11.6 allows local users to execute arbitrary code through a crafted persisted index. The BGEM3Index.load_from_disk() method passes multi_embed_store.pkl from the caller-supplied persist_dir directly to pickle.load() without validation. Execution requires a local user to supply the malicious persist directory and an application user to load that index, after which the payload runs with the application's privileges.

The record

CVE
CVE-2024-14021
Published
Jan 12, 2026
Updated
Jan 12, 2026
Vendor
LlamaIndex
Product
LlamaIndex
Classifications
CWE-502, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=0.11.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

LlamaIndex · LlamaIndexversion=0 <=0.11.6

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.4VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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