Unauthenticated Path Traversal in ComfyUI-Easy-Use Allows Remote Code Execution
cve-program · CVE-2026-123790
PublishedComfyUI-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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cve-program · CVE-2026-123790
PublishedUnauthenticated Path Traversal in ComfyUI-Easy-Use Allows Remote Code Execution
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.
- Source published
- 12 Nov 2026 14:48:30 UTC
- Source modified
- 12 Nov 2026 17:05:16 UTC
- Saved here
- 12 Nov 2026 19:16:18 UTC
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