{"id":"CVE-2024-12704","aliases":["GHSA-j3wr-m6xh-64hg","PYSEC-2025-244","PYSEC-2026-1563"],"url":"https://o3.security/vulnerability/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.","published":"2025-03-20T10:09:06.689Z","modified":"2026-07-15T01:49:07.097826212Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"llama-index-core","fixedVersion":"0.12.6"}],"fix":{"url":"https://github.com/run-llama/llama_index/commit/d1ecfb77578d089cbe66728f18f635c09aa32a05","label":"run-llama/llama_index@d1ecfb7"},"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:07.097826212Z"}}