---
cve: "CVE-2026-68771"
severity: "CRITICAL"
cvss: 9.3
epss: "62%"
vendor: "Comfy-Org"
kev: false
exploited: false
published: "2026-07-31 22:17:03"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T04:52:31+02:00"
---

# CVE-2026-68771

> 9.3 CRITICAL · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 94ee49b1612824366a8631ea069b2a1fa5c73720 (Commit)

## Referenzen

- <https://github.com/Comfy-Org/ComfyUI/pull/14543>
- <https://github.com/Comfy-Org/ComfyUI>
- <https://github.com/Comfy-Org/ComfyUI/commit/94ee49b1612824366a8631ea069b2a1fa5c73720>
- <https://www.vulncheck.com/advisories/comfyui-unauthenticated-rce-via-loadtrainingdataset-pickle-deserialization>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-68771) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_