CVE-2021-47156

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

The Net::IPAddress::Util module before 5.000 for Perl does not properly consider extraneous zero characters in an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses.

Published 2024-03-18. Last modified 2026-06-17.