CVE-2021-39214 log

Source
Severity Medium
Remote Yes
Type Url request injection
Description
In mitmproxy 7.0.2 and below, a malicious client or server is able to perform HTTP request smuggling attacks through mitmproxy. This means that a malicious client/server could smuggle a request/response through mitmproxy as part of another request/response's HTTP message body. While a smuggled request is still captured as part of another request's body, it does not appear in the request list and does not go through the usual mitmproxy event hooks, where users may have implemented custom access control checks or input sanitization.

Unless one uses mitmproxy to protect an HTTP/1 service, no action is required.
Group Package Affected Fixed Severity Status Ticket
AVG-2395 mitmproxy 7.0.2-1 7.0.3-1 Medium Fixed
References
https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-22gh-3r9q-xf38
https://github.com/mitmproxy/mitmproxy/commit/9fed8ae554a3ba888cc2a9f20f6e8aaa8d8709e7