{"id":"CVE-2026-103040","title":"LightLLM through 1.2.0 contains a remote code execution vulnerability in the router profiler service when started with --enable_profiling flag","summary":"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, allow…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-502"],"vendor":"ModelTC","product":"LightLLM","affected":["LightLLM <= 1.2.0"],"published":"2026-09-29","updated":"2026-09-30","sourceUpdated":"2026-09-30T15:22:24.830","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103040","references":[{"url":"https://github.com/ModelTC/LightLLM","label":"disclosure@vulncheck.com"},{"url":"https://github.com/ModelTC/LightLLM/issues/1597","label":"disclosure@vulncheck.com"},{"url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/profiler_service.py#L32-L34","label":"disclosure@vulncheck.com"},{"url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/profiler_service.py#L46-L50","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-router-profiler-rpyc-service","label":"disclosure@vulncheck.com"},{"url":"https://github.com/ModelTC/LightLLM/issues/1597","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.01014,"epssPercentile":0.63086,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-30T13:58:55.143001Z"},"ingestedAt":"2026-09-29T23:52:50.534Z","slug":"CVE-2026-103040","body":"## Overview\n\nLightLLM 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[{"seq":213726,"id":"CVE-2026-103040","ts":1790780961870,"field":"exploit_available","old":"false","new":"true"}]}