Catalyst::Plugin::Statsd versions through 0.10.0 for Perl may leak session ids.
If the communication channel to the statsd daemon is not secured (for example, by sending UDP packets to a host on another network), then users' session ids may be leaked. This may allow an attacker to use session ids as authentication tokens.
Use a statsd daemon on the same host or through a secure communications channel.
Upgrade to version 0.10.0 of later, which will no longer log session ids to statsd.
If Plack::Middleware::Statsd is upgraded to 0.9.0 or later and is configured to log some information securely, then session ids will be logged as HMAC signatures instead.