CVE-2025-5302
HIGHllama-index-core < 0.12.38 - Denial of Service via JSONReader Recursion
Title source: llmDescription
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 (2)
Core 2
Core References
Exploit, Third Party Advisory
https://huntr.com/bounties/70041b81-de9e-4046-8c0e-6ccd557048a6
Scores
CVSS v3
8.6
EPSS
0.0026
EPSS Percentile
17.2%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-674
Status
published
Products (2)
pypi/llama-index-core
0 - 0.12.38PyPI
run-llama/run-llama/llama_index
unspecified - 0.12.38
Published
Aug 25, 2025
Tracked Since
Feb 18, 2026