CVE-2026-22779

MEDIUM

5.3

Description

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.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie1/14/2026

Derniere modification1/22/2026

Sourcenvd

Observations honeypot0

Produits affectes

neoteroi:blacksheep

Faiblesses (CWE)

CWE-113

References

https://github.com/Neoteroi/BlackSheep/commit/bd4ecb9542b5d52442276b5a6907931b90f38d12(security-advisories@github.com)

https://github.com/Neoteroi/BlackSheep/releases/tag/v2.4.6(security-advisories@github.com)

https://github.com/Neoteroi/BlackSheep/security/advisories/GHSA-6pw3-h7xf-x4gp(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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