Image disclosure via unchecked annotated filepath joins
Published Apr 20, 2026 · Updated Apr 20, 2026
Path traversal in ComfyUI 0.1 through 0.13.0 allows remote attackers to read image files outside the input directory via /prompt. LoadImage's VALIDATE_INPUTS bypasses combo validation, and get_annotated_filepath joins the supplied name to a base directory without checking containment. Reachability requires exposing the localhost-bound server; successful use probes arbitrary host paths and exfiltrates image-format files.
Summary
What happened
Path traversal in ComfyUI 0.1 through 0.13.0 allows remote attackers to read image files outside the input directory via /prompt. LoadImage's VALIDATE_INPUTS bypasses combo validation, and get_annotated_filepath joins the supplied name to a base directory without checking containment. Reachability requires exposing the localhost-bound server; successful use probes arbitrary host paths and exfiltrates image-format files.
The record
- CVE
- CVE-2026-6591
- Published
- Apr 20, 2026
- Updated
- Apr 20, 2026
- Vendor
- Comfy Org
- Product
- ComfyUI
- Classifications
- CWE-22, T1083, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 20, 2026CVE publishedPublication date reported by the CVE source.
- Apr 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.1
- Affected versionversion=0.10
- Affected versionversion=0.11
- Affected versionversion=0.12
- Affected versionversion=0.13.0
- Affected versionversion=0.2
- Affected versionversion=0.3
- Affected versionversion=0.4
- Affected versionversion=0.5
- Affected versionversion=0.6
- Affected versionversion=0.7
- Affected versionversion=0.8
- Affected versionversion=0.9
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- YLChen-007 ComfyUI path traversal proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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