It was discovered that the Waitress WSGI server was susceptible to HTTP request smuggling in some scenarios when used behind a proxy. For the oldstable distribution (buster), this problem has been fixed in version 1.2.0~b2-2+deb10u1. For the stable distribution (bullseye), this problem has been fixed in version 1.4.4-1.1+deb11u1. We recommend that you upgrade your waitress packages. For the detailed security status of waitress please refer to its security tracker page at: https://security-tracker.debian.org/tracker/waitress
It was discovered that the Waitress WSGI server was susceptible to HTTP request smuggling in some scenarios when used behind a proxy.
For the oldstable distribution (buster), this problem has been fixed in version 1.2.0~b2-2+deb10u1.
For the stable distribution (bullseye), this problem has been fixed in version 1.4.4-1.1+deb11u1.
We recommend that you upgrade your waitress packages.
For the detailed security status of waitress please refer to its security tracker page at: https://security-tracker.debian.org/tracker/waitress