Net::CIDR::Set versions through 0.20 for Perl did not validate network masks
CVE-2026-49942
Currently unrated
What is CVE-2026-49942?
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.
Affected Version(s)
Net::CIDR::Set 0 <= 0.20