What is CVE-2025-5302?

CVE-2025-5302 is a high-severity vulnerability in Run-Llama Run-Llama/llama Index, classified under Uncontrolled Recursion. CVSS score: 8.6/10. Published 2025-08-25.

How severe is CVE-2025-5302?

High severity. CVSS v3 base score is 8.6 out of 10.

Is CVE-2025-5302 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Run-Llama Run-Llama/llama Index

CVE-2025-5302

A denial of service vulnerability exists in the JSONReader component of the run-llama/llama_index repository, specifically in version v0.12.37. The vulnerability is caused by uncontrolled recursion when parsing deeply nested JSON files, which can lead to Python hitting its maximum recursion depth limit. This results in high resource consumption and potential crashes of the Python process. The issue is resolved in version 0.12.38.

EPSS: 0.003 (20.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

Affected products

Run-llama Run-llama/llama_index — versions unspecified

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

Frequently asked questions

What is CVE-2025-5302?: CVE-2025-5302 is a high-severity vulnerability in Run-Llama Run-Llama/llama Index, classified under Uncontrolled Recursion. CVSS score: 8.6/10. Published 2025-08-25.
How severe is CVE-2025-5302?: High severity. CVSS v3 base score is 8.6 out of 10.
Is CVE-2025-5302 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.