CVE-2025-5302 – Llama Index JSONReader Recursive Denial of Service

The following table lists the changes that have been made to the
CVE-2025-5302 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Aug. 25, 2025

    Action Type Old Value New Value
    Added Description 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.
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
    Added CWE CWE-674
    Added Reference https://github.com/run-llama/llama_index/commit/c032843a02ce38fd8f284b2aa5a37fd1c17ae635
    Added Reference https://huntr.com/bounties/70041b81-de9e-4046-8c0e-6ccd557048a6
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