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CVE-2026-22777— ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler

Quick assessment

Affected
Comfy-Org ComfyUI-Manager
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ComfyUI-Manager是Dr.Lt.Data个人开发者的一款旨在增强 ComfyUI 可用性的扩展程序。 ComfyUI-Manager 3.39.2之前版本和4.0.5之前版本存在注入漏洞，该漏洞源于攻击者可以向HTTP查询参数注入特殊字符以向config.ini文件添加任意配置值，可能导致安全设置篡改或应用程序行为修改。

CVSS 7.5 · High EPSS 0.34% · P28

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-22777

Vulnerability Information
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Vulnerability Title
ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler
Source: CVE Program / CVE List V5
Vulnerability Description
ComfyUI-Manager is an extension designed to enhance the usability of ComfyUI. Prior to versions 3.39.2 and 4.0.5, an attacker can inject special characters into HTTP query parameters to add arbitrary configuration values to the config.ini file. This can lead to security setting tampering or modification of application behavior. This issue has been patched in versions 3.39.2 and 4.0.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对CRLF序列的转义处理不恰当(CRLF注入)
Source: CVE Program / CVE List V5
Vulnerability Title
ComfyUI-Manager 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ComfyUI-Manager是Dr.Lt.Data个人开发者的一款旨在增强 ComfyUI 可用性的扩展程序。 ComfyUI-Manager 3.39.2之前版本和4.0.5之前版本存在注入漏洞，该漏洞源于攻击者可以向HTTP查询参数注入特殊字符以向config.ini文件添加任意配置值，可能导致安全设置篡改或应用程序行为修改。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Comfy-Org ComfyUI-Manager >= 4.0.0, < 4.0.5 -

II. Public POCs for CVE-2026-22777

# POC Description Source Link Shenlong Link
1 https://github.com/vulhub/vulhub/blob/master/comfyui/CVE-2026-22777/README.md POC Details
2 None https://github.com/Threekiii/Awesome-POC/blob/master/Web%E5%BA%94%E7%94%A8%E6%BC%8F%E6%B4%9E/ComfyUI-Manager%20%E9%85%8D%E7%BD%AE%E5%A4%84%E7%90%86%E5%99%A8%20CRLF%20%E6%B3%A8%E5%85%A5%E6%BC%8F%E6%B4%9E%20CVE-2026-22777.md POC Details
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Qwen3.6-35B-A3B · 10165 chars
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III. Intelligence Information for CVE-2026-22777

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Vendor Advisories for CVE-2026-22777 (1)

IV. Related Vulnerabilities

Same product: ComfyUI-Manager
Same vendor: Comfy-Org
Same weakness: CWE-93