Ce mail provient de l'extérieur, restons vigilants ===================================================================== CERT-Renater Note d'Information No. 2026/VULN597 _____________________________________________________________________ DATE : 05/06/2026 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Net::CIDR::Set versions prior to 0.21. ===================================================================== https://lists.security.metacpan.org/cve-announce/msg/40702749/ https://lists.security.metacpan.org/cve-announce/msg/40702781/ https://lists.security.metacpan.org/cve-announce/msg/40702816/ _____________________________________________________________________ CVE-2026-49940: Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks Robert Rothenberg 04 Jun 2026 16:09 UTC ======================================================================== CVE-2026-49940 CPAN Security Group ======================================================================== CVE ID: CVE-2026-49940 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 accept non-ASCII IP addresses and netmasks 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 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 Timeline -------- - 2026-05-13: Issue reported to CPANSec - 2026-06-02: Net::CIDR::Set version 0.21 released with fix _____________________________________________________________________ CVE-2026-49941: Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses Robert Rothenberg 04 Jun 2026 16:10 UTC ======================================================================== CVE-2026-49941 CPAN Security Group ======================================================================== CVE ID: CVE-2026-49941 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 IP addresses Description ----------- Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses. The add method called the _encode method to parse addresses. If the addresses did not look like netmasks or network ranges, then they were assumed to single IP addresses and passed back to itself as a 32-bit or 128-bit netmask. If the argument was not a well-formed IP address, then this would lead to indefinite recursion. An attacker could use this to cause a denial of service. Problem types ------------- - CWE-1287 Improper Validation of Specified Type of Input - CWE-674 Uncontrolled Recursion Solutions --------- Upgrade to version 0.21 of later. References ---------- https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes Timeline -------- - 2026-05-13: Issue reported to CPANSec - 2026-06-02: Net::CIDR::Set version 0.21 released with fix _____________________________________________________________________ CVE-2026-49942: Net::CIDR::Set versions through 0.20 for Perl did not validate network masks Robert Rothenberg 04 Jun 2026 16:11 UTC ======================================================================== 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 ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23/25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email:cert@support.renater.fr + =========================================================