CVE-2026-40199 Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass

Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass. packipv6 includes the sentinel byte from packipv4 when building the packed representation of IPv4 mapped addresses like ::ffff:192.168.1.1. This produces an 18 byte value instead of...

CVE-2026-40199 Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass

Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass. packipv6 includes the sentinel byte from packipv4 when building the packed representation of IPv4 mapped addresses like ::ffff:192.168.1.1. This produces an 18 byte value instead of...

CVE-2026-40199

Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass. packipv6 includes the sentinel byte from packipv4 when building the packed representation of IPv4 mapped addresses like ::ffff:192.168.1.1. This produces an 18 byte value instead of...

CVE-2026-40198

CVE-2026-40198/40199 affect Net::CIDR::Lite for Perl prior to 0.23. The IPv6 handling flaw in _pack_ipv6() allows malformed uncompressed IPv6 addresses and IPv4-mapped IPv6 addresses to produce packed values of incorrect length, causing mask and comparison operations to misbehave. Consequently, f...

CVE-2026-40198 Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass

Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass. packipv6 does not check that uncompressed IPv6 addresses without :: have exactly 8 hex groups. Inputs like "abcd", "1:2:3", or "1:2:3:4:5:6:7" are accepted and produce packed values of...

CVE-2026-40198

Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass. packipv6 does not check that uncompressed IPv6 addresses without :: have exactly 8 hex groups. Inputs like "abcd", "1:2:3", or "1:2:3:4:5:6:7" are accepted and produce packed values of...

CVE-2026-40198

Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass. packipv6 does not check that uncompressed IPv6 addresses without :: have exactly 8 hex groups. Inputs like "abcd", "1:2:3", or "1:2:3:4:5:6:7" are accepted and produce packed values of...

CVE-2026-40198 Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass

Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass. packipv6 does not check that uncompressed IPv6 addresses without :: have exactly 8 hex groups. Inputs like "abcd", "1:2:3", or "1:2:3:4:5:6:7" are accepted and produce packed values of...

CVE-2026-40198 Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass

Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass. packipv6 does not check that uncompressed IPv6 addresses without :: have exactly 8 hex groups. Inputs like "abcd", "1:2:3", or "1:2:3:4:5:6:7" are accepted and produce packed values of...

Net-CIDR-Lite 安全漏洞

Net-CIDR-Lite is a Perl module developed by Stig for processing CIDR addresses. Versions of Net-CIDR-Lite prior to 0.23 contained security vulnerabilities, which stemmed from improper handling of IPv4-mapped IPv6 addresses, potentially allowing bypasses in IP access control lists...

PT-2026-32049

Name of the Vulnerable Software and Affected Versions Net::CIDR::Lite versions prior to 0.23 Description Net::CIDR::Lite versions before 0.23 for Perl incorrectly handles IPv4 mapped IPv6 addresses, potentially allowing IP ACL bypass. The pack ipv6 function includes a sentinel byte from pack ipv4...

PT-2026-32048

Name of the Vulnerable Software and Affected Versions Net::CIDR::Lite versions prior to 0.23 Description The Net::CIDR::Lite Perl module before version 0.23 does not properly validate the IPv6 group count, potentially allowing a bypass of IP Access Control Lists ACLs. Recommendations Update to...

Net-CIDR-Lite 安全漏洞

Net-CIDR-Lite is a Perl module developed by Stig for handling CIDR addresses. Versions of Net-CIDR-Lite prior to 0.23 contained security vulnerabilities, which stemmed from an unvalidated check of the number of IPv6 groups, potentially allowing IP access control lists to be bypassed...

The vulnerability of the Net::CIDR::Lite interpreter for the Perl programming language arises from errors in handling extra null characters at the beginning of an IP address string. This allows a malicious actor to bypass access controls.

The vulnerability of the Net::CIDR::Lite interpreter for the Perl programming language is related to errors in handling extra zero characters at the beginning of an IP address. Exploiting this vulnerability can allow a remote attacker to bypass access controls...

SUSE SLED15 / SLES15 / openSUSE 15 Security Update : perl-Net-CIDR-Lite (SUSE-SU-2024:1256-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2024:1256-1 advisory. - CVE-2021-47154: Fixed leading zeroes in IPv4 octets may allow attackers to bypass certain access contro...

SUSE-SU-2024:1256-1 Security update for perl-Net-CIDR-Lite

This update for perl-Net-CIDR-Lite fixes the following issues: - CVE-2021-47154: Fixed leading zeroes in IPv4 octets may allow attackers to bypass certain access controls bsc1221564...

Ubuntu: Security Advisory (USN-6712-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-6712-1: Net::CIDR::Lite vulnerability

It was discovered that Net::CIDR::Lite incorrectly handled extra zero characters at the beginning of IP address strings. A remote attacker could possibly use this issue to bypass access controls...

Ubuntu 20.04 LTS : Net::CIDR::Lite vulnerability (USN-6712-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-6712-1 advisory. It was discovered that Net::CIDR::Lite incorrectly handled extra zero characters at the beginning of IP address strings. A remote attacker could possibly use this...

OESA-2024-1303 perl-Net-CIDR-Lite security update

Faster alternative to Net::CIDR when merging a large number of CIDR address ranges. Works for IPv4 and IPv6 addresses. Security Fixes: The Net::CIDR::Lite module before 0.22 for Perl does not properly consider extraneous zero characters at the beginning of an IP address string, which in some...