high7.5

CVE-2026-22777

ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler

Impact

## Impact **Vulnerability Type**: CRLF Injection via ConfigParser 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. **Affected Users**: Users running ComfyUI-Manager in environments where ComfyUI is configured with the `--listen` option to allow remote access. **CVSS Score**: 7.5 (High) ## Patches Fixed in the following versions: - **3.39.2** (v3.x branch) - **4.0.5** (v4.x branch) Sanitization logic was added to the `write_config()` function to remove CRLF and NULL characters from all string values. ## Workarounds If upgrading is not possible: - Run ComfyUI-Manager only on trusted networks - Block external access via firewall - Run on localhost only without the `--listen` option ## References - [CWE-93: Improper Neutralization of CRLF Sequences](https://cwe.mitre.org/data/definitions/93.html) - [OWASP CRLF Injection](https://owasp.org/www-community/vulnerabilities/CRLF_Injection) ## Credit This vulnerability was reported by: - 李存义 <xiaoheihei1107@gmail.com> - D0n9 Li <wyd0n9@gmail.com> - Swings <swing@mail.exp.sh> - Osword from SGLAB of Legendsec at Qi'anxin Group <zhzhdoai@gmail.com>

Affected packages

Ecosystem	Package	Affected	Fixed in
pip	`comfy-cli`	>= 4.0.0, <= 4.0.4	4.0.5

Affected products

Vendor	Product	Affected versions
Comfy	Comfyui-Manager	before 3.39.2 from 4.0.3 before 4.0.5

Weakness classification

CWE-93