How severe is CVE-2024-14021?

CVE-2024-14021 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-14021 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-14021?

CVE-2024-14021 affects Llamaindex. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-14021?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-14021 have an EU (EUVD) identifier?

Yes. CVE-2024-14021 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2396.

When was CVE-2024-14021 published?

CVE-2024-14021 was published on 2026-01-12 and last updated on 2026-06-17.

CVE-2024-14021

CVE-2024-14021 is a high-severity vulnerability in Llamaindex with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v4: 8.4
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-2396
Weakness: CWE-502
Affected product: Llamaindex
Published: 2026-01-12
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2024-14021?: 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.
How severe is CVE-2024-14021?: CVE-2024-14021 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-14021 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-14021?: CVE-2024-14021 affects Llamaindex. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-14021?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-14021 have an EU (EUVD) identifier?: Yes. CVE-2024-14021 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2396.
When was CVE-2024-14021 published?: CVE-2024-14021 was published on 2026-01-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:llamaindex:llamaindex:*:*:*:*:*:*:*:*

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