CVE-2026-103042 (GCVE-0-2026-103042)

Vulnerability from cvelistv5 – Published: 2026-09-29 22:51 – Updated: 2026-09-29 22:51
VLAI
Title
LightLLM through 1.2.0 Unauthenticated Memory Exhaustion via NCCL Control Channel set_value
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.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version CPE status
ModelTC LightLLM Affected: 0 , ≤ 1.2.0 (semver)
guessed Create a notification for this product.
Date Public
2026-09-29 00:00
Credits
Mingkai Yu Jiapeng Li Jiajia Liu
Show details on NVD website
To clipboard 

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    "dateReserved": "2026-09-29T22:17:06.624Z",
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}



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