CVE-2026-45179 RRWO CVE debrief

Who should care

Users of Plack::Middleware::Statsd versions before 0.9.0 for Perl should be aware of this vulnerability and take necessary actions to secure their systems. Affected operators include administrators and users of Plack::Middleware::Statsd. Affected platforms include Perl environments where Plack::Middleware::Statsd is deployed. Vulnerability-management and security teams should review the CVE record and NVD entry to validate affected scope, severity, and vendor guidance.

Technical summary

The vulnerability exists in Plack::Middleware::Statsd versions before 0.9.0 for Perl. If the communication channel to the statsd daemon is not secured, user IP addresses may be leaked. The issue is resolved in version 0.9.0, where the IP address is no longer logged to statsd unless configured, and an HMAC signature of the IP address is logged instead. Affected product context includes Plack::Middleware::Statsd versions before 0.9.0 for Perl. Defensive impact includes securing the communication channel to the statsd daemon and configuring IP address logging and HMAC signature logging as needed.

Defensive priority

Medium

Recommended defensive actions

• Update Plack::Middleware::Statsd to version 0.9.0 or later
• Secure the communication channel to the statsd daemon
• Configure IP address logging and HMAC signature logging as needed
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-05-10T20:16:28.967Z and was last modified on 2026-07-24T19:10:00.160Z. The NVD entry is currently Deferred. The vulnerability exists in Plack::Middleware::Statsd versions before 0.9.0 for Perl. If the communication channel to the statsd daemon is not secured, user IP addresses may be leaked. The issue is resolved in version 0.9.0, where the IP address is no longer logged to statsd unless configured, and an HMAC signature of the IP address is logged instead. Evidence limits suggest verifying the configuration of Plack::Middleware::Statsd and ensuring that the communication channel to the statsd daemon is secured.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.