{"id":"CVE-2024-12704","summary":"Denial of Service (DoS) in run-llama/llama_index","details":"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.","aliases":["GHSA-j3wr-m6xh-64hg","PYSEC-2025-244","PYSEC-2026-1563"],"modified":"2026-08-12T03:51:38.575336661Z","published":"2025-03-20T10:09:06.689Z","database_specific":{"cna_assigner":"@huntr_ai","cwe_ids":["CWE-835"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/12xxx/CVE-2024-12704.json"},"references":[{"type":"WEB","url":"https://huntr.com/bounties/a0b638fd-21c6-4ba7-b381-6ab98472a02a"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/12xxx/CVE-2024-12704.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-12704"},{"type":"FIX","url":"https://github.com/run-llama/llama_index/commit/d1ecfb77578d089cbe66728f18f635c09aa32a05"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/run-llama/llama_index","events":[{"introduced":"ae1810654d6b568aaf60ebad20fd8ff9178805eb"},{"fixed":"d1ecfb77578d089cbe66728f18f635c09aa32a05"}],"database_specific":{"source":["CPE_STRING","REFERENCES"],"cpe":"cpe:2.3:a:llamaindex:llamaindex:0.12.5:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0.12.5"},{"last_affected":"0.12.5"}]}}],"versions":["0.12.5","v0.12.5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-12704.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}