# CVE-2026-45191

## Summary

- **CVE ID:** CVE-2026-45191
- **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 11, 2026

## Description

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.

## Affected Products

- STIGTSP — Net::CIDR::Lite (0)

## References

- [CNA](https://github.com/stigtsp/Net-CIDR-Lite/commit/24e2c439ec405e5256024b9acefd4f7008c5ed0c.patch)
- [CNA](https://metacpan.org/release/STIGTSP/Net-CIDR-Lite-0.24/changes)
- [CNA](https://www.cve.org/CVERecord?id=CVE-2026-45190)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.30%
- **EPSS Percentile:** 22.3

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._