CVE-2026-49942
HighCVSS 7.3Summary
Net::CIDR::Set versions through 0.20 for Perl did not validate network masks, potentially allowing larger networks to be accepted. The mask could contain Unicode digits or non-digits, which were ignored.
Risk Assessment
The lack of proper validation for network masks could lead to unauthorized access to larger networks, posing a serious security threat to the organization.
Recommendation
It is recommended to upgrade to a newer version of Net::CIDR::Set that improves network mask validation and enforces appropriate restrictions.
Original NVD description (English source)
Net::CIDR::Set versions through 0.20 for Perl did not validate network masks. The mask portion of a network mask could contain Unicode digits such as the Arabic-Indic One (U+0661), or non-digits, which were ignored. This could allow network masks to accept larger networks. Leading zeros were also accepted, but treated as decimal instead of octal. This could lead to confusion about what networks are acceptable.