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EUVD-2026-265362

2026-10-04T22:20:52.499967+00:00

EUVD-2026-265362

fkie_cve-2026-22777

2026-10-04T22:20:52.500006+00:00

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.

GHSA-562r-8445-54r2 — ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler

2026-10-04T22:20:52.500039+00:00

Affected: PyPI: comfy-cli

## 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 - D0n9 Li - Swings - Osword from SGLAB of Legendsec at Qi'anxin Group

PYSEC-2026-1260 — ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler

2026-10-04T22:20:52.500086+00:00