Unauthenticated RCE in ComfyUI v0.23.0 LoadTrainingDataset (CVE-2026-68771) | Mallory Google Alert - "Comfy UI" OR "ComfyUI" / 15h CVE-2026-68771 is a critical unsafe deserialization vulnerability in ComfyUI v0.23.0 affecting the LoadTrainingDataset node, specifically the LoadTrainingDataset.execute code path in the dataset-loading component. Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns.

CVE-2026-68771 is a critical unsafe deserialization vulnerability in ComfyUI v0.23.0 affecting the LoadTrainingDataset node in comfy_extras/nodes_dataset.py, specifically the LoadTrainingDataset.execute code path. The vulnerable implementation loads attacker-controlled training dataset shard files using torch.load without the weights_only safeguard. Because torch.load deserializes Python pickle data, a remote attacker can supply a crafted shard pickle that abuses pickle deserialization behavior, including reduce , to execute arbitrary Python code during loading. The described attack chain uses an unauthenticated file upload capability to place a malicious training shard on the server and then submits a workflow graph that references that shard, causing the vulnerable node to deserialize it. The issue was later addressed by hardening the load operation to use torch.load with weights_only=True, preventing arbitrary object deserialization in this code path.

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No public exploit code observed for this vulnerability.

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An unauthenticated remote code execution vulnerability in ComfyUI v0.23.0 caused by unsafe pickle deserialization in the LoadTrainingDataset node.

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Every observed campaign linking this CVE to a named adversary.

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Cross-references every affected SKU, including bundled OEM variants.

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