A pound security update has been released for Debian GNU/Linux 8 LTS to address a request smuggling vulnerability.

DLA 2196-1: pound security update

Package : pound
Version : 2.6-6+deb8u2
CVE ID : CVE-2016-10711

An issue has been found in pound,
A request smuggling vulnerability was discovered in pound, a everse proxy,
load balancer and HTTPS front-end for Web servers, that may allow
attackers to send a specially crafted http request to a web server or
reverse proxy while pound may see a different set of requests.
This facilitates several possible exploitations, such as partial cache
poisoning, bypassing firewall protection and XSS.

For Debian 8 "Jessie", this problem has been fixed in version
2.6-6+deb8u2.

We recommend that you upgrade your pound packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS