======================================================================== CVE-2026-49941 CPAN Security Group ======================================================================== CVE ID: CVE-2026-49941 Distribution: Net-CIDR-Set Versions: through 0.20 MetaCPAN: https://metacpan.org/dist/Net-CIDR-Set VCS Repo: https://github.com/robrwo/perl-Net-CIDR-Set Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses Description ----------- Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses. The add method called the _encode method to parse addresses. If the addresses did not look like netmasks or network ranges, then they were assumed to single IP addresses and passed back to itself as a 32-bit or 128-bit netmask. If the argument was not a well-formed IP address, then this would lead to indefinite recursion. An attacker could use this to cause a denial of service. Problem types ------------- - CWE-1287 Improper Validation of Specified Type of Input - CWE-674 Uncontrolled Recursion Solutions --------- Upgrade to version 0.21 of later. References ---------- https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes Timeline -------- - 2026-05-13: Issue reported to CPANSec - 2026-06-02: Net::CIDR::Set version 0.21 released with fix
