{"id":"CVE-2026-103040","published":"2026-09-29T23:17:21.447","lastModified":"2026-09-29T23:17:21.573","description":"LightLLM through 1.2.0 contains a remote code execution vulnerability in the router profiler service when started with --enable_profiling flag. The service exposes an unauthenticated RPyC server with pickle deserialization enabled, allowing attackers to execute arbitrary code by sending crafted serialized objects to the profiler command queue.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-502"],"vendors":[],"products":[],"references":[{"url":"https://github.com/ModelTC/LightLLM","tags":[]},{"url":"https://github.com/ModelTC/LightLLM/issues/1597","tags":[]},{"url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/profiler_service.py#L32-L34","tags":[]},{"url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/profiler_service.py#L46-L50","tags":[]},{"url":"https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-router-profiler-rpyc-service","tags":[]}],"exploitRefs":[{"url":"https://github.com/ModelTC/LightLLM","tags":[]},{"url":"https://github.com/ModelTC/LightLLM/issues/1597","tags":[]},{"url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/profiler_service.py#L32-L34","tags":[]},{"url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/profiler_service.py#L46-L50","tags":[]}],"hasPoc":true,"ai":{"summary":"LightLLM versions through 1.2.0 are vulnerable to remote code execution due to an unauthenticated RPyC server with pickle deserialization enabled, allowing attackers to execute arbitrary code via crafted serialized objects.","exploitability":"Exploitation is relatively straightforward given the unauthenticated nature and the presence of a RPyC server with deserialization enabled. Attackers must start the service with the --enable_profiling flag.","blast_radius":"If exploited, this vulnerability could lead to complete compromise of the affected system, potentially allowing attackers to execute arbitrary code and gain full control over the system.","remediation":"Disable the profiling feature by not starting the service with the --enable_profiling flag, or upgrade to a version later than 1.2.0 if available.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","pickle-deserialization","remote-code-execution","unauthenticated","service-exploit"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-30T08:48:31.185Z"}}