CVE-2026-45179 Plack::Middleware::Statsd versions before 0.9.0 for Perl may leak user IP addresses
Attackers can intercept unsecured UDP traffic to leak user IP addresses from Plack::Middleware::Statsd unless the channel is secured or updated.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-45179?
CVE-2026-45179 is a medium-severity vulnerability in RRWO Plack::Middleware::Statsd, published on 10 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Plack::Middleware::Statsd versions before 0.9.0 for Perl may leak user IP addresses.
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' IP addresses may be leaked.
Since version 0.9.0, the IP address is no longer logged to statsd unless configured. When configured, an HMAC signature of the IP address is logged instead.
Weakness: CWE-319
Which versions are affected by CVE-2026-45179?
How do I fix CVE-2026-45179?
No fix has been published for CVE-2026-45179 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-45179 being exploited?
There is no known exploitation of CVE-2026-45179 in the wild and no public exploit code.
Sources
Also known as GHSA-9gwm-665p-w2xx.