======================================================================== CVE-2026-49942 CPAN Security Group ========================================================================
CVE ID: CVE-2026-49942 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 network masks Description ----------- 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. Problem types ------------- - CWE-1289 Improper Validation of Unsafe Equivalence in Input Solutions --------- Upgrade to version 0.21. References ---------- https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes https://nvd.nist.gov/vuln/detail/CVE-2025-40911 https://nvd.nist.gov/vuln/detail/CVE-2026-45191 Timeline -------- - 2026-05-13: Issue reported to CPANSec - 2026-06-02: Net::CIDR::Set version 0.21 released with fix
