# CVE-2026-45190

## Summary

- **CVE ID:** CVE-2026-45190
- **Severity:** MEDIUM
- **CVSS Score:** 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L)
- **CWE:** CWE-1289
- **Published:** May 10, 2026
- **Last Modified:** May 12, 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.

## Affected Products

- STIGTSP — Net::CIDR::Lite (0)

## References

- [CNA](https://github.com/stigtsp/Net-CIDR-Lite/commit/ca9542adec87110556601d7ce48381ea8d13e692.patch)
- [CNA](https://metacpan.org/release/STIGTSP/Net-CIDR-Lite-0.24/changes)
- [CNA](https://www.cve.org/CVERecord?id=CVE-2026-45191)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.31%
- **EPSS Percentile:** 23.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._