EUVD-2026-89483

LightLLM through 1.2.0 contains a memory exhaustion vulnerability in the NCCL control channel when started with --pdtransmode nccl, allowing unauthenticated attackers to exhaust KV-transfer worker memory. Attackers can call the exposedsetvalue method to store unbounded key-value pairs without siz...

CVE-2026-103042

LightLLM through 1.2.0 contains a memory exhaustion vulnerability in the NCCL control channel when started with --pdtransmode nccl, allowing unauthenticated attackers to exhaust KV-transfer worker memory. Attackers can call the exposedsetvalue method to store unbounded key-value pairs without siz...

CVE-2026-103042 LightLLM through 1.2.0 Unauthenticated Memory Exhaustion via NCCL Control Channel set_value

LightLLM through 1.2.0 contains a memory exhaustion vulnerability in the NCCL control channel when started with --pdtransmode nccl, allowing unauthenticated attackers to exhaust KV-transfer worker memory. Attackers can call the exposedsetvalue method to store unbounded key-value pairs without siz...

CVE-2026-103042 LightLLM through 1.2.0 Unauthenticated Memory Exhaustion via NCCL Control Channel set_value

LightLLM through 1.2.0 contains a memory exhaustion vulnerability in the NCCL control channel when started with --pdtransmode nccl, allowing unauthenticated attackers to exhaust KV-transfer worker memory. Attackers can call the exposedsetvalue method to store unbounded key-value pairs without siz...

CVE-2026-103042 LightLLM through 1.2.0 Unauthenticated Memory Exhaustion via NCCL Control Channel set_value

LightLLM through 1.2.0 contains a memory exhaustion vulnerability in the NCCL control channel when started with --pdtransmode nccl, allowing unauthenticated attackers to exhaust KV-transfer worker memory. Attackers can call the exposedsetvalue method to store unbounded key-value pairs without siz...

CVE-2026-103042

LightLLM through version 1.2.0 is susceptible to a memory exhaustion vulnerability within the NCCL control channel. When the system is started with the --pd_trans_mode nccl flag, unauthenticated attackers can exploit the exposed exposed_set_value method. Because this method lacks size limits, it ...

CVE-2026-103042: Allocation of Resources Without Limits or Throttling

LightLLM through 1.2.0 contains a memory exhaustion vulnerability in the NCCL control channel when started with --pdtransmode nccl, allowing unauthenticated attackers to exhaust KV-transfer worker memory. Attackers can call the exposedsetvalue method to store unbounded key-value pairs without siz...

PT-2026-102937

Name of the Vulnerable Software and Affected Versions LightLLM versions prior to 1.2.1 Description A memory exhaustion issue exists in the NCCL control channel when the software is started with the --pd trans mode nccl configuration. Unauthenticated attackers can exploit this by calling the expos...

EUVD-2026-85294

LightLLM through 1.2.0 contains a remote code execution vulnerability in the KV-transfer worker when started with --pdtransmode nccl, which exposes an unauthenticated RPyC control channel that deserializes attacker-supplied data. Attackers can send malicious pickled objects to the exposed RPyC...

CVE-2026-96560 LightLLM through 1.2.0 Unauthenticated Remote Code Execution via NCCL PD RPyC Control Channel

LightLLM through 1.2.0 contains a remote code execution vulnerability in the KV-transfer worker when started with --pdtransmode nccl, which exposes an unauthenticated RPyC control channel that deserializes attacker-supplied data. Attackers can send malicious pickled objects to the exposed RPyC...

CVE-2026-96560

LightLLM versions through 1.2.0 are vulnerable to remote code execution (RCE) due to a flaw in the KV-transfer worker . When the service is started with the --pd_trans_mode nccl flag, it exposes an unauthenticated RPyC control channel . This channel is susceptible to the deserialization of untrus...

PT-2026-97321

Name of the Vulnerable Software and Affected Versions LightLLM versions prior to 1.2.1 Description Remote code execution is possible in the KV-transfer worker when the service is started with the --pd trans mode nccl configuration. This configuration exposes an unauthenticated RPyC control channe...

CVE-2026-96560: Deserialization of Untrusted Data

LightLLM through 1.2.0 contains a remote code execution vulnerability in the KV-transfer worker when started with --pdtransmode nccl, which exposes an unauthenticated RPyC control channel that deserializes attacker-supplied data. Attackers can send malicious pickled objects to the exposed RPyC...

Dual-Node NVIDIA DGX Spark over Tailscale: A Remote-Access Testbed for Distributed LLM Training and Cyber-Threat-Intelligence Fine-Tuning

Compact AI systems make local language-model experimentation increasingly accessible, yet practical evidence for multi-node training on desktop-class accelerators remains limited. This report presents a proof-of-concept deployment of distributed NanoChat pretraining across two NVIDIA DGX Spark...

CVE-2026-15978

SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as SGLang will expose two endpoints that allow a remote attacker to trigger distributed weight broadcasting using NCCL and then triggering data transfer, attackers can exfiltrate all model weights...

CVE-2026-15978: Missing Authentication for Critical Function

SGLang contains a model weight exfiltration vulnerability when no API keys are configured, as SGLang will expose two endpoints that allow a remote attacker to trigger distributed weight broadcasting using NCCL and then triggering data transfer, attackers can exfiltrate all model weights...

PT-2026-53636

Impacted Environments This issue ONLY impacts environments using the PyNcclPipe KV cache transfer integration with the V0 engine. No other configurations are affected. Summary vLLM supports the use of the PyNcclPipe class to establish a peer-to-peer communication domain for data transmission...

Unspecified Vulnerability in PyTorch (CNVD-2025-23289)

PyTorch is a Python package open-sourced by PyTorch. PyTorch has a security vulnerability that originates from improper handling of the function torch.cuda.nccl.reduce in the file torch/cuda/nccl.py, which can be exploited by an attacker to cause a denial of service...

SUSE CVE-2025-4287

A vulnerability was found in PyTorch 2.6.0+cu124. It has been rated as problematic. Affected by this issue is the function torch.cuda.nccl.reduce of the file torch/cuda/nccl.py. The manipulation leads to denial of service. It is possible to launch the attack on the local host. The exploit has bee...

Improper Resource Shutdown or Release

Overview torch is a Tensors and Dynamic neural networks in Python with strong GPU acceleration Affected versions of this package are vulnerable to Improper Resource Shutdown or Release through the torch.cuda.nccl.reduce function in the file torch/cuda/nccl.py. An attacker can cause the applicatio...