ComfyUI-Easy-Use version 1.3.6 contains a path traversal vulnerability in the `save_preview()` handler for POST `/easyuse/save/{name}`. The handler checks the source directory before appending a user-supplied filename and allows the request to select the `custom_nodes` directory as a copy destination. An unauthenticated attacker who can reach the ComfyUI server can overwrite an installed custom node’s Python entry point with an uploaded file. When ComfyUI restarts and loads the modified node, the attacker’s code runs with the privileges of the ComfyUI process.
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References
History
Thu, 12 Nov 2026 15:30:00 +0000
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Thu, 12 Nov 2026 15:00:00 +0000
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| Description | ComfyUI-Easy-Use version 1.3.6 contains a path traversal vulnerability in the `save_preview()` handler for POST `/easyuse/save/{name}`. The handler checks the source directory before appending a user-supplied filename and allows the request to select the `custom_nodes` directory as a copy destination. An unauthenticated attacker who can reach the ComfyUI server can overwrite an installed custom node’s Python entry point with an uploaded file. When ComfyUI restarts and loads the modified node, the attacker’s code runs with the privileges of the ComfyUI process. | |
| Title | Unauthenticated Path Traversal in ComfyUI-Easy-Use Allows Remote Code Execution | |
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Status: PUBLISHED
Assigner: certcc
Published:
Updated: 2026-11-12T15:13:46.135Z
Reserved: 2026-11-06T14:47:00.908Z
Link: CVE-2026-123790
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Status : Received
Published: 2026-11-12T15:17:46.667
Modified: 2026-11-12T15:17:46.667
Link: CVE-2026-123790
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