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CVE-2026-22777

ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler

7.5 HighPublic exploitFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

0.87%Up 0.8 points since Jan 10, 2026
90%50%10%1%

What each source reports

CVE List Score used 7.5

ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler

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.

Record
CVE-2026-22777
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-93
Updated
2026-11-02
EUVDEUVD-2026-1864 7.5

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.

Record
EUVD-2026-1864
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-562r-8445-54r2 7.5

ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler

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

Credit

This vulnerability was reported by:

Record
GHSA-562r-8445-54r2
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-93
Updated
2026-11-02
NVD 7.5

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.

Record
CVE-2026-22777
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-93
Updated
2026-11-02
OSV 7.5

ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler

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.

Record
CVE-2026-22777
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-93
Updated
2026-11-02
OSVGHSA-562r-8445-54r2 7.5

ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler

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

Credit

This vulnerability was reported by:

Record
GHSA-562r-8445-54r2
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-93
Updated
2026-11-02
OSVPYSEC-2026-1260 7.5

ComfyUI-Manager is Vulnerable to CRLF Injection in Configuration Handler

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

Credit

This vulnerability was reported by:

Record
PYSEC-2026-1260
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
comfy-cli
PyPI
 4.0.0 to 4.0.4
4.0.5
comfy-cli
PyPI
 before 3.39.2
3.39.2
comfy-cli
PyPI
 4.0.0 up to 4.0.5
4.0.5
comfy-cli
PyPI
 before 3.39.2, plus listed versions
0.0.100.0.110.0.120.0.130.0.14
Show 45 moreShow less
0.0.150.0.160.0.170.0.180.0.190.0.200.0.20.dev00.0.20.dev10.0.210.0.21.dev00.0.21.dev10.0.21.dev130.0.21.dev140.0.21.dev20.0.21.dev30.0.21.dev40.0.21.dev80.0.21.dev90.0.220.0.230.0.240.0.250.0.260.0.280.0.290.0.310.0.320.0.80.0.91.0.321.0.331.0.341.0.351.0.361.1.01.1.11.1.21.1.31.1.41.1.51.1.61.1.71.1.81.10.01.10.1
3.39.2
comfy-cli
PyPI
 before 3.39.2, 4.0.0 up to 4.0.5, plus listed versions
0.0.100.0.110.0.120.0.130.0.14
Show 45 moreShow less
0.0.150.0.160.0.170.0.180.0.190.0.200.0.20.dev00.0.20.dev10.0.210.0.21.dev00.0.21.dev10.0.21.dev130.0.21.dev140.0.21.dev20.0.21.dev30.0.21.dev40.0.21.dev80.0.21.dev90.0.220.0.230.0.240.0.250.0.260.0.280.0.290.0.310.0.320.0.80.0.91.0.321.0.331.0.341.0.351.0.361.1.01.1.11.1.21.1.31.1.41.1.51.1.61.1.71.1.81.10.01.10.1
3.39.24.0.5

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubSi13NTTT/CVE-2026-227772026-09-28
NucleiComfyUI-Manager < 3.39.2 - CRLF Configuration Injection

History

History
RecordedChangedSources
exploits, factsNuclei
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-22777 is a high vulnerability (CVSS 7.5) in Comfy Comfyui-manager, published January 10, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.87%, the 58th percentile. Fixed in comfy-cli 4.0.5.

References

This page doesn't list everything

Left out here: 90 versions. The JSON record has them.

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