CVE-2026-103040: Modeltc Lightllm

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

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.

Affected products

• Modeltc Lightllm: up to and including 1.2.0

Published 2026-09-29. Last modified 2026-09-30.