{"id":"CVE-2026-68771","title":"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 deserial…","summary":"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 deserial…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-502"],"published":"2026-07-31","updated":"2026-09-09","sourceUpdated":"2026-09-09T20:35:08.537","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-68771","references":[{"url":"https://github.com/Comfy-Org/ComfyUI","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Comfy-Org/ComfyUI/commit/94ee49b1612824366a8631ea069b2a1fa5c73720","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Comfy-Org/ComfyUI/pull/14543","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/comfyui-unauthenticated-rce-via-loadtrainingdataset-pickle-deserialization","label":"disclosure@vulncheck.com"}],"tags":["nvd","exploit-available"],"epss":0.00781,"epssPercentile":0.54448,"exploits":{"github":2,"githubRepos":["https://github.com/0xdak/CVE-2026-68771_exploit","https://github.com/Oscar-Collado/comfyui-CVE-2026-68771-PoC"],"checkedAt":"2026-09-23T07:14:37.746Z"},"exploitAvailable":true,"ingestedAt":"2026-09-09T21:22:45.520Z","slug":"CVE-2026-68771","body":"## Overview\n\nComfyUI 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[]}