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 are then re-encoded by the parser to a different address than the input string spelled. find() and bin_find() can match or miss addresses as a result. Example: my $cidr = Net::CIDR::Lite->new(); $cidr->add("::1\n/128"); $cidr->find("::1a"); # incorrectly returns true See also CVE-2026-45191.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1732 advisory.

    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 are then re-     encoded by the parser to a different address than the input string spelled. find() and bin_find() can     match or miss addresses as a result.

    Example:

    my $cidr = Net::CIDR::Lite->new();$cidr->add(::1\n/128);$cidr->find(::1a);  # incorrectly returns true

    See also CVE-2026-45191. (CVE-2026-45190)

    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 as their unpadded value.

    See also CVE-2026-45190. (CVE-2026-45191)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-9e783d6aa1 advisory.

    This update addresses some input validation issues:

     * Reject Unicode digits and trailing newlines in parser inputs (CVE-2026-45190)
     * Reject zero-padded CIDR masks (CVE-2026-45191)


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-6f3d2d0d82 advisory.

    This update addresses some input validation issues:

     * Reject Unicode digits and trailing newlines in parser inputs (CVE-2026-45190)
     * Reject zero-padded CIDR masks (CVE-2026-45191)


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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 are then re-encoded by the parser to a different address than the input string spelled.
    find() and bin_find() can match or miss addresses as a result. Example: my $cidr = Net::CIDR::Lite->new();
    $cidr->add(::1\n/128); $cidr->find(::1a); # incorrectly returns true See also CVE-2026-45191.
    (CVE-2026-45190)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
316830	Amazon Linux 2023 : perl-Net-CIDR-Lite (ALAS2023-2026-1732)	Nessus	Amazon Linux Local Security Checks	medium
315369	Fedora 43 : perl-Net-CIDR-Lite (2026-9e783d6aa1)	Nessus	Fedora Local Security Checks	medium
314986	Fedora 44 : perl-Net-CIDR-Lite (2026-6f3d2d0d82)	Nessus	Fedora Local Security Checks	medium
314154	Linux Distros Unpatched Vulnerability : CVE-2026-45190	Nessus	Misc.	medium

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