ComfyUI v0.23.0 contains an unsafe deserialization vulnerability in the LoadTrainingDataset node that allows unauthenticated remote attackers to execute arbitrary Python code by uploading a crafted pickle file and triggering its deserialization. Attackers can upload a malicious shard_*.pkl file via the unauthenticated POST /upload/image endpoint and then queue a workflow graph via POST /prompt referencing the uploaded file, causing torch.load to deserialize the attacker-controlled pickle payload using __reduce__ and execute arbitrary commands as the ComfyUI process user.
Metrics
Affected Vendors & Products
References
History
Fri, 14 Aug 2026 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:comfy:comfyui:*:*:*:*:*:*:*:* |
Mon, 03 Aug 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Sun, 02 Aug 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Comfy
Comfy comfyui |
|
| Vendors & Products |
Comfy
Comfy comfyui |
Fri, 31 Jul 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | ComfyUI v0.23.0 contains an unsafe deserialization vulnerability in the LoadTrainingDataset node that allows unauthenticated remote attackers to execute arbitrary Python code by uploading a crafted pickle file and triggering its deserialization. Attackers can upload a malicious shard_*.pkl file via the unauthenticated POST /upload/image endpoint and then queue a workflow graph via POST /prompt referencing the uploaded file, causing torch.load to deserialize the attacker-controlled pickle payload using __reduce__ and execute arbitrary commands as the ComfyUI process user. | |
| Title | ComfyUI 0.23.0 Unauthenticated RCE via LoadTrainingDataset Pickle Deserialization | |
| Weaknesses | CWE-502 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-07-31T21:16:09.970Z
Updated: 2026-08-14T16:51:10.220Z
Reserved: 2026-07-31T16:10:55.448Z
Link: CVE-2026-68771
Updated: 2026-08-03T17:07:58.486Z
Status : Deferred
Published: 2026-07-31T22:17:03.630
Modified: 2026-09-09T20:35:08.537
Link: CVE-2026-68771
No data.