CVE-2026-49940

Description

Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks. Unicode digits such as the Arabic-Indic One (U+0661) were accepted but not properly parsed as numbers. This could allow network masks to accept larger networks.

CVSS Vector

References

• https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes
• https://nvd.nist.gov/vuln/detail/CVE-2025-40911