CVE-2026-45190
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
- State
- Published
- Severity
- 6.5 Medium
- Published
- May 10, 2026
- Updated
- May 12, 2026
- Reserved
- May 10, 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.
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L | CISA-ADP |
Weaknesses
- CWE-1289 Improper Validation of Unsafe Equivalence in Input
Affected Products
| Product | Versions |
|---|---|
Net::CIDR::LiteSTIGTSP |
|
References
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