{"id":"CVE-2024-12704","aliases":["EUVD-2025-7006","GHSA-j3wr-m6xh-64hg","PYSEC-2025-244","PYSEC-2026-1563"],"status":"published","title":"Denial of Service (DoS) in run-llama/llama_index","description":"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.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00831,"percentile":0.57845,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-755","CWE-835"],"published":"2025-03-20T10:09:06Z","modified":"2026-10-28T02:30:59Z","fixes":[{"ecosystem":"PyPI","package":"llama-index-core","fixed_in":["0.12.6"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"llama-index-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.6"}]}]},{"source":"osv","ecosystem":"PyPI","package":"llama-index-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.6"}]}],"versions":["0.10.0","0.10.1","0.10.10","0.10.11","0.10.11.post1","0.10.12","0.10.13","0.10.14","0.10.14.post1","0.10.15","0.10.16","0.10.16.post1","0.10.17","0.10.18","0.10.18.post1","0.10.19","0.10.2","0.10.20","0.10.20.post1","0.10.20.post2","0.10.20.post3","0.10.21","0.10.21.post1","0.10.22","0.10.23","0.10.23.post1","0.10.24","0.10.24.post1","0.10.24a1","0.10.25","0.10.25.post1","0.10.25.post2","0.10.25.post3","0.10.25a1","0.10.26","0.10.27","0.10.28","0.10.29","0.10.3","0.10.30","0.10.31","0.10.32","0.10.33","0.10.34","0.10.35","0.10.35.post1","0.10.36","0.10.37","0.10.37.post1","0.10.38","0.10.38.post1","0.10.38.post2","0.10.39","0.10.39.post1","0.10.40","0.10.41","0.10.42","0.10.43","0.10.43.post1","0.10.44","0.10.45","0.10.46","0.10.47","0.10.48","0.10.48.post1","0.10.49","0.10.5","0.10.50","0.10.50.post1","0.10.51","0.10.52","0.10.52.post1","0.10.52.post2","0.10.53","0.10.53.post1","0.10.54","0.10.54.post1","0.10.55","0.10.56","0.10.57","0.10.58","0.10.59","0.10.59a1","0.10.59a2","0.10.5a1","0.10.5a10","0.10.5a2","0.10.5a3","0.10.5a4","0.10.5a5","0.10.5a6","0.10.5a7","0.10.5a8","0.10.5a9","0.10.6","0.10.6.post1","0.10.60","0.10.61","0.10.62","0.10.63","0.10.64","0.10.65","0.10.66","0.10.67","0.10.68","0.10.68.post1","0.10.7","0.10.8","0.10.8.post1","0.10.9","0.11.0","0.11.0.post1","0.11.1","0.11.10","0.11.11","0.11.12","0.11.13","0.11.13.post1","0.11.14","0.11.15","0.11.16","0.11.17","0.11.18","0.11.19","0.11.2","0.11.20","0.11.21","0.11.22","0.11.23","0.11.3","0.11.4","0.11.5","0.11.6","0.11.7","0.11.8","0.11.9","0.12.0","0.12.1","0.12.2","0.12.3","0.12.4","0.12.5","0.9.41","0.9.42","0.9.42.post3","0.9.43","0.9.44","0.9.44.post1","0.9.44.post2","0.9.44.post3","0.9.45","0.9.46","0.9.47","0.9.48","0.9.49","0.9.50","0.9.50.post1","0.9.51","0.9.52","0.9.53","0.9.54","0.9.55","0.9.56"]},{"source":"osv","ecosystem":"PyPI","package":"llama-index","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.12.5"}]}],"versions":["0.10.0","0.10.1","0.10.10","0.10.11","0.10.12","0.10.13","0.10.13.post1","0.10.14","0.10.15","0.10.16","0.10.17","0.10.18","0.10.19","0.10.20","0.10.22","0.10.23","0.10.24","0.10.25","0.10.26","0.10.27","0.10.28","0.10.29","0.10.3","0.10.30","0.10.31","0.10.32","0.10.33","0.10.34","0.10.35","0.10.36","0.10.37","0.10.38","0.10.39","0.10.4","0.10.40","0.10.41","0.10.42","0.10.43","0.10.44","0.10.45","0.10.45.post1","0.10.46","0.10.47","0.10.48","0.10.48.post1","0.10.49","0.10.5","0.10.50","0.10.51","0.10.52","0.10.53","0.10.54","0.10.54.post1","0.10.55","0.10.56","0.10.57","0.10.58","0.10.59","0.10.5a1","0.10.6","0.10.61","0.10.62","0.10.63","0.10.64","0.10.65","0.10.67.post1","0.10.68","0.10.7","0.10.8","0.10.9","0.11.0","0.11.1","0.11.10","0.11.11","0.11.12","0.11.13","0.11.14","0.11.15","0.11.16","0.11.17","0.11.18","0.11.19","0.11.2","0.11.20","0.11.21","0.11.22","0.11.23","0.11.3","0.11.4","0.11.5","0.11.6","0.11.7","0.11.8","0.11.9","0.12.0","0.12.1","0.12.2","0.12.3","0.12.4","0.12.5","0.4.10","0.4.11","0.4.12","0.4.13","0.4.14","0.4.15","0.4.16","0.4.17","0.4.18","0.4.19","0.4.20","0.4.21","0.4.22","0.4.22.post1","0.4.23","0.4.24","0.4.25","0.4.26","0.4.27","0.4.28","0.4.29","0.4.30","0.4.31","0.4.32","0.4.33","0.4.34","0.4.35","0.4.35.post1","0.4.36","0.4.37","0.4.38","0.4.39","0.4.4","0.4.4.post1","0.4.4.post2","0.4.40","0.4.5","0.4.6","0.4.7","0.4.8","0.4.9","0.5.0","0.5.1","0.5.10","0.5.11","0.5.12","0.5.13","0.5.13.post1","0.5.15","0.5.16","0.5.17","0.5.17.post1","0.5.18","0.5.19","0.5.2","0.5.20","0.5.21","0.5.22","0.5.23","0.5.23.post1","0.5.25","0.5.26","0.5.27","0.5.3","0.5.4","0.5.5","0.5.6","0.5.7","0.5.8","0.5.9","0.6.0","0.6.0a1","0.6.0a2","0.6.0a3","0.6.0a4","0.6.0a5","0.6.0a6","0.6.0a7","0.6.1","0.6.10","0.6.10.post1","0.6.11","0.6.12","0.6.13","0.6.14","0.6.15","0.6.16","0.6.16.post1","0.6.17","0.6.18","0.6.19","0.6.2","0.6.20","0.6.21.post1","0.6.22","0.6.23","0.6.24","0.6.25","0.6.25.post1","0.6.26","0.6.27","0.6.28","0.6.29","0.6.30","0.6.31","0.6.32","0.6.33","0.6.34","0.6.34.post1","0.6.35","0.6.36","0.6.37","0.6.38","0.6.38.post1","0.6.4","0.6.5","0.6.6","0.6.7","0.6.8","0.6.9","0.7.0","0.7.1","0.7.10","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Party Advisory","web","evidence"]},{"url":"https://github.com/run-llama/llama_index/commit/d1ecfb77578d089cbe66728f18f635c09aa32a05","tags":["Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-12704","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-j3wr-m6xh-64hg","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/12xxx/CVE-2024-12704.json","tags":["advisory"]},{"url":"https://github.com/run-llama/llama_index","tags":["package"]},{"url":"https://pypi.org/project/llama-index-core","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2024-12704","title":"Denial of Service (DoS) in run-llama/llama_index","description":"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.","status":"published","published":"2025-03-20T10:09:06.689Z","modified":"2025-10-15T12:50:18.666Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T14:34:12.635756Z"}],"euvd":[{"id":"EUVD-2025-7006","description":"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.","status":"published","published":"2025-03-20T10:09:06Z","modified":"2025-10-15T12:50:18Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T20:31:32.071816Z"}],"ghsa":[{"id":"GHSA-j3wr-m6xh-64hg","title":"LlamaIndex Improper Handling of Exceptional Conditions vulnerability","description":"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.","status":"published","published":"2025-03-20T12:32:43Z","modified":"2026-02-24T16:08:09Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-755","CWE-835"],"updated_at":"2026-11-02T14:39:27.949248Z"}],"nvd":[{"id":"CVE-2024-12704","description":"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.","status":"published","published":"2025-03-20T10:15:29.383Z","modified":"2026-06-17T07:00:18.56Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T14:10:45.815983Z"}],"osv":[{"id":"CVE-2024-12704","title":"Denial of Service (DoS) in run-llama/llama_index","description":"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.","status":"published","published":"2025-03-20T10:09:06.689Z","modified":"2026-10-28T02:30:59.885767769Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T15:44:37.917085Z"},{"id":"GHSA-j3wr-m6xh-64hg","title":"LlamaIndex Improper Handling of Exceptional Conditions vulnerability","description":"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.","status":"published","published":"2025-03-20T12:32:43Z","modified":"2026-07-13T07:26:43.232587643Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-755","CWE-835"],"updated_at":"2026-11-02T15:46:49.977351Z"},{"id":"PYSEC-2025-244","description":"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.","status":"published","published":"2025-03-20T10:15:29.383Z","modified":"2026-07-13T07:26:43.232587643Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:54.242332Z"},{"id":"PYSEC-2026-1563","title":"LlamaIndex Improper Handling of Exceptional Conditions vulnerability","description":"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.","status":"published","published":"2026-07-07T14:34:53.244852Z","modified":"2026-07-13T07:26:43.232587643Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:55.06457Z"}]}}