AI agent vulnerability · LlamaIndex

CVE-2025-5302: LlamaIndex affected by a Denial of Service (DOS) in JSONReader

highCVSS 3.0 8.6GHSA-7753-xrfw-ch36

A denial of service vulnerability exists in the JSONReader component of the run-llama/llamaindex 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.

Published Aug 26, 2025

Affected packages

llama-index-core

Ecosystem: PyPI
Affected: < 0.12.38
Fixed in: 0.12.38
Check: pip show llama-index-core

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

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.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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