CVE-2024-12704

A vulnerability in the LangChainLLM class of the run-llama/llama_index repository, version v0.12.5, allows for a Denial of Service (DoS) attack. The stream_complete method executes the llm using a thread and retrieves the result via the get_response_gen method of the StreamingGeneratorCallbackHandler class. If the thread terminates abnormally before the _llm.predict is executed, there is no exception handling for this case, leading to an infinite loop in the get_response_gen function. This can be triggered by providing an input of an incorrect type, causing the thread to terminate and the process to continue running indefinitely.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/run-llama/llama_index/commit/d1ecfb77578d089cbe66728f18f635c09aa32a05	Patch
https://huntr.com/bounties/a0b638fd-21c6-4ba7-b381-6ab98472a02a	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:llamaindex:llamaindex:0.12.5:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-03-20 10:15

Updated : 2025-10-15 13:15

NVD link : CVE-2024-12704

Mitre link : CVE-2024-12704

CVE.ORG link : CVE-2024-12704

JSON object : View

Products Affected

llamaindex

llamaindex

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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