{"id":"CVE-2026-68771","summary":"ComfyUI 0.23.0 Unauthenticated RCE via LoadTrainingDataset Pickle Deserialization","details":"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.","modified":"2026-08-02T03:47:51.726549128Z","published":"2026-07-31T21:16:09.970Z","database_specific":{"cwe_ids":["CWE-502"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68771.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68771.json"},{"type":"ADVISORY","url":"https://github.com/Comfy-Org/ComfyUI/pull/14543"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68771"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/comfyui-unauthenticated-rce-via-loadtrainingdataset-pickle-deserialization"},{"type":"FIX","url":"https://github.com/Comfy-Org/ComfyUI/commit/94ee49b1612824366a8631ea069b2a1fa5c73720"},{"type":"PACKAGE","url":"https://github.com/Comfy-Org/ComfyUI"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/comfy-org/comfyui","events":[{"introduced":"0"},{"fixed":"94ee49b1612824366a8631ea069b2a1fa5c73720"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"0.23.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v0.25.0","v0.24.0","v0.23.0","v0.22.0","v0.21.1","v0.21.0","v0.20.1","v0.20.0","v0.19.3","v0.19.2","v0.19.1","v0.19.0","v0.18.1","v0.18.0","v0.17.0","v0.16.4","v0.16.3","v0.16.2","v0.16.1","v0.16.0","v0.15.1","v0.15.0","v0.14.1","v0.14.0","v0.13.0","v0.12.3","v0.12.2","v0.12.1","v0.12.0","v0.11.1","v0.11.0","v0.10.0","v0.9.2","v0.9.1","v0.9.0","v0.8.2","v0.8.1","v0.8.0","v0.7.0","v0.6.0","v0.5.1","v0.5.0","v0.4.0","v0.3.76","v0.3.75","v0.3.74","v0.3.73","v0.3.72","v0.3.71","v0.3.70","v0.3.69","v0.3.68","v0.3.67","v0.3.66","v0.3.65","v0.3.64","v0.3.63","v0.3.62","v0.3.61","v0.3.60","v0.3.59","v0.3.58","v0.3.52","v0.3.57","v0.3.56","v0.3.55","v0.3.54","v0.3.53","v0.3.51","v0.3.50","v0.3.49","v0.3.48","v0.3.47","v0.3.46","v0.3.45","v0.3.44","v0.3.43","v0.3.42","v0.3.41","v0.3.40","v0.3.39","v0.3.38","v0.3.37","v0.3.36","v0.3.35","v0.3.34","v0.3.33","v0.3.32","v0.3.31","v0.3.30","v0.3.29","v0.3.28","v0.3.27","v0.3.26","v0.3.25","v0.3.24","v0.3.23","v0.3.22","v0.3.21","v0.3.20","v0.3.19","v0.3.18","v0.3.17","v0.3.16","v0.3.15","v0.3.14","v0.3.13","v0.3.12","v0.3.11","v0.3.10","v0.3.9","v0.3.8","v0.3.7","v0.3.6","v0.3.5","v0.3.4","v0.3.3","v0.3.2","v0.3.1","v0.3.0","v0.2.7","v0.2.6","v0.2.5","v0.2.4","v0.2.3","v0.2.2","v0.2.1","v0.2.0","v0.1.3","v0.1.2","v0.1.1","v0.1.0","v0.0.8","v0.0.7","v0.0.6","v0.0.5","v0.0.4","v0.0.2","v0.0.1","latest"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68771.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}