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CVE-2026-45191

Medium priority
Fixed

Net::CIDR::Lite versions before 0.24 for Perl does not properly consider extraneous zero characters in CIDR mask values, which may allow IP ACL bypass. Mask forms like "/00" and "/01" pass validation and parse to the same prefix...

1 affected package

libnet-cidr-lite-perl

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libnet-cidr-lite-perl Fixed Fixed Fixed Fixed Fixed
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CVE-2026-45190

Medium priority
Fixed

Net::CIDR::Lite versions before 0.24 for Perl does not properly validate IP address and CIDR mask inputs, which may allow IP ACL bypass. Inputs containing a trailing newline or non-ASCII digit characters pass the validators but...

1 affected package

libnet-cidr-lite-perl

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libnet-cidr-lite-perl Fixed Fixed Fixed Fixed Fixed
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CVE-2026-40199

Medium priority

Some fixes available 6 of 7

Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass. _pack_ipv6() includes the sentinel byte from _pack_ipv4() when building the packed representation of IPv4 mapped...

1 affected package

libnet-cidr-lite-perl

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libnet-cidr-lite-perl Fixed Fixed Fixed Fixed Fixed
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CVE-2026-40198

Medium priority

Some fixes available 6 of 7

Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass. _pack_ipv6() does not check that uncompressed IPv6 addresses (without ::) have exactly 8 hex groups. Inputs like...

1 affected package

libnet-cidr-lite-perl

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libnet-cidr-lite-perl Fixed Fixed Fixed Fixed Fixed
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CVE-2021-47154

Medium priority

Some fixes available 2 of 3

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 situations) allows attackers to bypass access control that is based on...

1 affected package

libnet-cidr-lite-perl

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libnet-cidr-lite-perl Not affected Not affected Not affected Fixed Fixed
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