Search criteria

3 vulnerabilities found for BlackSheep by Neoteroi

FKIE_CVE-2026-22779

Vulnerability from fkie_nvd - Published: 2026-01-14 17:16 - Updated: 2026-01-22 15:39
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Summary
BlackSheep is an asynchronous web framework to build event based web applications with Python. Prior to 2.4.6, the HTTP Client implementation in BlackSheep is vulnerable to CRLF injection. Missing headers validation makes it possible for an attacker to modify the HTTP requests (e.g. insert a new header) or even create a new HTTP request. Exploitation requires developers to pass unsanitized user input directly into headers.The server part is not affected because BlackSheep delegates to an underlying ASGI server handling of response headers. This vulnerability is fixed in 2.4.6.
References
security-advisories@github.comhttps://github.com/Neoteroi/BlackSheep/commit/bd4ecb9542b5d52442276b5a6907931b90f38d12Patch
security-advisories@github.comhttps://github.com/Neoteroi/BlackSheep/releases/tag/v2.4.6Release Notes
security-advisories@github.comhttps://github.com/Neoteroi/BlackSheep/security/advisories/GHSA-6pw3-h7xf-x4gpThird Party Advisory
Impacted products
Vendor Product Version
neoteroi blacksheep *
To clipboard 

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CVE-2026-22779 (GCVE-0-2026-22779)

Vulnerability from cvelistv5 – Published: 2026-01-14 16:49 – Updated: 2026-01-14 21:01
VLAI
Title
BlackSheep ClientSession is vulnerable to CRLF injection
Summary
BlackSheep is an asynchronous web framework to build event based web applications with Python. Prior to 2.4.6, the HTTP Client implementation in BlackSheep is vulnerable to CRLF injection. Missing headers validation makes it possible for an attacker to modify the HTTP requests (e.g. insert a new header) or even create a new HTTP request. Exploitation requires developers to pass unsanitized user input directly into headers.The server part is not affected because BlackSheep delegates to an underlying ASGI server handling of response headers. This vulnerability is fixed in 2.4.6.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CWE
  • CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
Assigner
References
Impacted products
Vendor Product Version
Neoteroi BlackSheep Affected: < 2.4.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-22779 (GCVE-0-2026-22779)

Vulnerability from nvd – Published: 2026-01-14 16:49 – Updated: 2026-01-14 21:01
VLAI
Title
BlackSheep ClientSession is vulnerable to CRLF injection
Summary
BlackSheep is an asynchronous web framework to build event based web applications with Python. Prior to 2.4.6, the HTTP Client implementation in BlackSheep is vulnerable to CRLF injection. Missing headers validation makes it possible for an attacker to modify the HTTP requests (e.g. insert a new header) or even create a new HTTP request. Exploitation requires developers to pass unsanitized user input directly into headers.The server part is not affected because BlackSheep delegates to an underlying ASGI server handling of response headers. This vulnerability is fixed in 2.4.6.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CWE
  • CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
Assigner
References
Impacted products
Vendor Product Version
Neoteroi BlackSheep Affected: < 2.4.6
Create a notification for this product.
Show details on NVD website
To clipboard 

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