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VulnerabilityPublished

CVE-2026-123790: ComfyUI-Easy-Use version 1.3.6 contains a path traversal vulnerability in the save_preview() handler

Source GCVE Database

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Authoritative record:CVE-2026-123790· High

Not known to be exploited.

Data as of 12 Nov 2026, 16:21 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
ComfyUI-Easy-UseComfyUI-Easy-UseAffected
  • >=1.3.6 <=1.4.1
Fixed in–
GitHubyolain/ComfyUI-Easy-Usepkg:github/yolain/ComfyUI-Easy-UseOther threatsAffected
  • >=1.3.6 <=1.3.6
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Users should restrict network access to the ComfyUI server to trusted parties only until a fix is available. Monitor vendor advisories for remediation updates.

Description

ComfyUI-Easy-Use version 1.3.6 has a path traversal vulnerability in the save_preview() handler that allows an unauthenticated attacker to overwrite custom node Python entry points by uploading files to the custom_nodes directory. This can lead to arbitrary code execution with the privileges of the ComfyUI process upon restart.

References

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