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.
Problem types
CWE-1289 Improper Validation of Unsafe Equivalence in Input
Product status
Any version
Timeline
| 2026-05-13: | Issue reported to CPANSec |
| 2026-06-02: | Net::CIDR::Set version 0.21 released with fix |
References
metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes
nvd.nist.gov/vuln/detail/CVE-2025-40911