CVE-2026-103040
LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Router Profiler RPyC Service
ModelTC LightLLM
CVSS
9.3CriticalExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 30 Sep 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.78%Chance of exploitation activity in the next 30 days, higher than 55% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
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.
Text from CVE List
Affected versions 1
- LightLLMaffected: all versions through 1.2.0CVE List
References 5
- vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-router-profiler-rpyc-serviceAdvisoryvia CVE List
- github.com/ModelTC/LightLLM/issues/1597Exploitvia CVE List
- github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/profiler_service.py#L32-L34Referencevia CVE List
- github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/profiler_service.py#L46-L50Referencevia CVE List
- github.com/ModelTC/LightLLMReferencevia CVE List