HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-103042 — LightLLM through 1.2.0 contains a memory exhaustion vulnerability in the NCCL co...

·Source: NIST NVD

Updated:

Executive Summary

LightLLM through 1.2.0 contains a memory exhaustion vulnerability in the NCCL control channel when started with --pd_trans_mode nccl, allowing unauthenticated attackers to exhaust KV-transfer worker memory. Attackers can call the exposed_set_value method to store unbounded key-value pairs without size limits, causing the worker process to crash and triggering node failure.

Analysis

LightLLM through 1.2.0 contains a memory exhaustion vulnerability in the NCCL control channel when started with --pd_trans_mode nccl, allowing unauthenticated attackers to exhaust KV-transfer worker memory. Attackers can call the exposed_set_value method to store unbounded key-value pairs without size limits, causing the worker process to crash and triggering node failure. CVSS Score: 7.5. Published: 2026-09-29T23:17:21.830.

Indicators of Compromise (1)

CVE (1)
CVE-2026-103042
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Sep 29, 2026. Verified by: NIST.

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