{"id":"CVE-2026-103040","aliases":["EUVD-2026-89481","GHSA-c838-68vr-jxfw"],"status":"published","title":"LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Router Profiler RPyC Service","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.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01014,"percentile":0.63718,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2026-09-29T22:51:00Z","modified":"2026-11-09T02:46:56Z","products":[{"vendor":"modeltc","product":"lightllm"}],"references":[{"url":"https://github.com/ModelTC/LightLLM/issues/1597","tags":["issue-tracking","exploit","report"]},{"url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/profiler_service.py#L32-L34","tags":["technical-description","article"]},{"url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/profiler_service.py#L46-L50","tags":["technical-description","article"]},{"url":"https://github.com/ModelTC/LightLLM","tags":["product","package"]},{"url":"https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-router-profiler-rpyc-service","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103040","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c838-68vr-jxfw"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103040.json","tags":["advisory"]},{"url":"https://github.com/ModelTC/lightllm","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-103040","title":"LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Router Profiler RPyC Service","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.","status":"published","published":"2026-09-29T22:51:00.313Z","modified":"2026-09-30T13:59:15.479Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T13:34:37.420074Z"}],"euvd":[{"id":"EUVD-2026-89481","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.","status":"published","published":"2026-09-29T22:51:00Z","modified":"2026-09-30T13:59:15Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-02T17:27:49.499669Z"}],"ghsa":[{"id":"GHSA-c838-68vr-jxfw","title":"LightLLM through 1.2.0 contains a remote code execution vulnerability in the router profiler...","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.","status":"published","published":"2026-09-30T00:32:29Z","modified":"2026-09-30T00:32:47Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"},{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:12:35.132592Z"}],"nvd":[{"id":"CVE-2026-103040","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.","status":"published","published":"2026-09-29T23:17:21.447Z","modified":"2026-09-30T15:22:24.83Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:12:52.759595Z"}],"osv":[{"id":"CVE-2026-103040","title":"LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Router Profiler RPyC Service","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.","status":"published","published":"2026-09-29T22:51:00.313Z","modified":"2026-11-09T10:45:32.523684423Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"cwes":["CWE-502"],"updated_at":"2026-11-09T03:16:24.800471Z"}]}}