Inconsistent interpretation of HTTP requests in mitmproxy - CVE-2022-24766
Published: March 19, 2022 / Updated: April 13, 2026
Vulnerability identifier: #VU125834
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-24766
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
mitmproxy
mitmproxy
Software vendor:
mitmproxy.org
mitmproxy.org
Description
The vulnerability allows a remote attacker to bypass security checks.
The vulnerability exists due to insufficient protection against HTTP request smuggling in the HTTP/1 message handling logic when processing crafted HTTP requests and responses through the proxy. A remote attacker can smuggle a request or response through the proxy to bypass security checks.
This issue affects deployments where the proxy is used to protect an HTTP/1 service.
Remediation
Install security update from vendor's website.