CVE-2026-103042
highLightLLM through 1.2.0 contains a memory exhaustion vulnerability in the NCCL control channel when started with --pd_trans_mode nccl, allowing unauthenticated…
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/ModelTC/LightLLM disclosure@vulncheck.com
- https://github.com/ModelTC/LightLLM/issues/1595 disclosure@vulncheck.com
- https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/mode_ba... disclosure@vulncheck.com
- https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/mode_ba... disclosure@vulncheck.com
- https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/mode_ba... disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-memory-exhaust... disclosure@vulncheck.com
- https://github.com/ModelTC/LightLLM/issues/1595 134c704f-9b21-4f2e-91b3-4a467353bcc0