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TI-2026-48352 Aliases CVE-2026-68771GHSA-6p72-9j26-4rmx

ComfyUI 0.23.0 Unauthenticated RCE via LoadTrainingDataset Pickle Deserialization

Priority MEDIUM 50CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.

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 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01148 67th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Comfy-OrgComfyUIup to 0.23.0—No fix listedCNA
  • ComfyUI VendorComfy-Org Affected up to 0.23.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-68771
  2. 2026-10-03 Alias added: GHSA-6p72-9j26-4rmx

References

Patch 1

Advisory 1

Other 1

  • TI-2026-62555 ComfyUI before 0.30.0 Path Traversal via dataset save nodes CVSS 4.0HIGH 8.5
  • TI-2026-40855 ComfyUI: Path traversal in /experiment/models/preview allows arbitrary image file read CVSS 3.1HIGH 7.5
  • TI-2026-40857 ComfyUI: Path traversal in LoadImage via the /prompt API allows arbitrary file existence probing and image exfiltration CVSS 3.1HIGH 7.5
  • TI-2026-40856 ComfyUI: Stored XSS via /userdata/{file} due to Missing Content-Type Sanitization CVSS 3.1HIGH 8.2
  • TI-2026-40854 ComfyUI: Stored XSS via SVG file upload on the /view endpoint CVSS 3.1HIGH 8.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences