CVE-2026-103040
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductLightLLM
PublishedSep 29, 2026
First seenSep 29, 2026
Weakness typeCWE-502Deserialization of untrusted data
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ModelTC LightLLM | v ≤ 1.2.0 | — |
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