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Fedora 42 perl-Net-CIDR-Lite Security Fix CVE-2026-40199 CVE-2026-40198

fedora
Calendar Grey April 22, 2026
Scroller Fedora
Addressing critical security issues in Perl's IPv4 and IPv6 handling with Fedora Net-CIDR-Lite updates.
This update addresses two security issues regarding incorrect handling of malformed IPv6 addresses: Fix IPv4 mapped IPv6 packed length (CVE-2026-40199) Reject invalid uncompressed ...

Summary

Faster alternative to Net::CIDR when merging a large number of CIDR address

ranges. Works for IPv4 and IPv6 addresses.

Update Information:

This update addresses two security issues regarding incorrect handling of malformed IPv6 addresses: Fix IPv4 mapped IPv6 packed length (CVE-2026-40199) Reject invalid uncompressed IPv6 (CVE-2026-40198)

Topics%20covered

Topics Covered

security advisory fedora perl-Net-CIDR-Lite malformed address cve-2026-40198 cve-2026-40199

Change Log

* Sat Apr 11 2026 Paul Howarth - 0.23-1 - Update to 0.23 - Security: Fix IPv4 mapped IPv6 packed length (CVE-2026-40199) - Security: Reject invalid uncompressed IPv6 (CVE-2026-40198) * Sat Jan 17 2026 Fedora Release Engineering - 0.22-14 - Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild * Fri Jul 25 2025 Fedora Release Engineering - 0.22-13 - Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild

References

Fedora Update Notification FEDORA-2026-4b112416d8 2026-04-22 11:41:11.030786+00:00 Name : perl-Net-CIDR-Lite Product : Fedora 42 Version : 0.23 Release : 1.fc42 URL : https://metacpan.org/release/Net-CIDR-Lite Summary : Perl extension for merging IPv4 or IPv6 CIDR addresses Description : Faster alternative to Net::CIDR when merging a large number of CIDR address ranges. Works for IPv4 and IPv6 addresses.

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-4b112416d8' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
important
Lowest
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Critical

Name: perl-Net-CIDR-Lite
Product: Fedora 42
Version: 0.23
Release: 1.fc42
URL: https://metacpan.org/release/Net-CIDR-Lite
Summary: Perl extension for merging IPv4 or IPv6 CIDR addresses

Topics%20covered

Topics Covered

security advisory fedora perl-Net-CIDR-Lite malformed address cve-2026-40198 cve-2026-40199

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