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  4. CVE 2026 123790 unauthenticated path traversal in comfyui easy
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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-123790

Unauthenticated Path Traversal in ComfyUI-Easy-Use Allows Remote Code ExecutionCVE-2026-123790

Answer in brief

CVE-2026-123790 records a Unknown severity vulnerability in Unauthenticated Path Traversal in ComfyUI-Easy-Use Allows Remote Code Execution. The current sources do not mark it as known exploited. The current feed maps ComfyUI-Easy-Use/ComfyUI-Easy-Use (generic), ComfyUI-Easy-Use/ComfyUI-Easy-Use (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 12, 2026Updated Nov 12, 2026Source checked Nov 12, 2026First seen by HOL Nov 12, 2026Material review Nov 12, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps ComfyUI-Easy-Use/ComfyUI-Easy-Use (generic), ComfyUI-Easy-Use/ComfyUI-Easy-Use (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
ComfyUI-Easy-Use/ComfyUI-Easy-Usegeneric>=1.3.6 <=1.4.1Not reported
ComfyUI-Easy-Use/ComfyUI-Easy-Usegeneric>=1.3.6 <=1.3.6Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for ComfyUI-Easy-Use/ComfyUI-Easy-Use, ComfyUI-Easy-Use/ComfyUI-Easy-Use.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 12, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 12, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 12, 2026

Sources and claim methodology

  • Source referenceblog.nhhoang.io.vn
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referenceblog.nhhoang.io.vn
Upstream source description

ComfyUI-Easy-Use version 1.3.6 contains a path traversal vulnerability in the `save_preview()` handler for POST `/easyuse/save/{name}`. The handler checks the source directory before appending a user-supplied filename and allows the request to select the `custom_nodes` directory as a copy destination. An unauthenticated attacker who can reach the ComfyUI server can overwrite an installed custom node’s Python entry point with an uploaded file. When ComfyUI restarts and loads the modified node, the attacker’s code runs with the privileges of the ComfyUI process.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • SakanaAI text-to-LoRA Checkpoint Loading model_loading.py get_tokenizer path traversalAlso CWE-22

Record context

Vulnerability class
Path Traversal
EPSS
Not reported
CWE IDs
CWE-22
Source
CVE List V5
Source checked
Nov 12, 2026
References
4 linked sources
Open source record