CVE-2026-22779 describes a CRLF injection vulnerability in the HTTP Client implementation of the BlackSheep asynchronous web framework, affecting versions prior to 2.4.6. An attacker can exploit this by injecting unsanitized user input into HTTP headers, potentially modifying existing requests or creating new ones. Rated Medium severity (CVSS 5.3), this vulnerability requires no user interaction and has a low attack complexity, but only impacts integrity (I:L). Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.4.6CPE matchmatch criteria | cpe:2.3:a:neoteroi:blacksheep:*:*:*:*:*:python:*:* |
CVSS version used by this source: 4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.