What’s Vulnerable › Vulnerabilities

CVE-2026-45179: Plack::Middleware::Statsd versions before 0.9.0 for Perl may leak user IP addresses

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-10 · updated 2026-07-24
• Weakness: CWE-319

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.

Affected products

• RRWO Plack::Middleware::Statsd: before 0.9.0 — fixed in 0.9.0

How to fix

Upgrade to a fixed version: RRWO Plack::Middleware::Statsd 0.9.0. Check the vendor advisory for mitigations.

References

• https://github.com/robrwo/Plack-Middleware-Statsd/security/advisories/GHSA-9gwm-665p-w2xx
• https://metacpan.org/release/RRWO/Plack-Middleware-Statsd-v0.9.0/changes
• http://www.openwall.com/lists/oss-security/2026/05/10/4

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