CVE-2026-45190
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
10/05/2026
Last modified:
12/05/2026
Description
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.<br />
<br />
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.<br />
<br />
Example:<br />
<br />
my $cidr = Net::CIDR::Lite->new();<br />
$cidr->add("::1\n/128");<br />
$cidr->find("::1a"); # incorrectly returns true<br />
<br />
See also CVE-2026-45191.
Impact
Base Score 3.x
6.50
Severity 3.x
MEDIUM