What is CVE-2023-39662?

CVE-2023-39662 is a critical-severity vulnerability in Llamaindex Project, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.8/10. Published 2023-08-15.

How severe is CVE-2023-39662?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Llamaindex Project

CVE-2023-39662

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.

Published 2023-08-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.2th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Llamaindex Project

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

github.com/jerryjliu/llama_index/issues/7054 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2023-39662?: CVE-2023-39662 is a critical-severity vulnerability in Llamaindex Project, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.8/10. Published 2023-08-15.
How severe is CVE-2023-39662?: Critical severity. CVSS v3 base score is 9.8 out of 10.