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.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade perl-net-cidr-lite | Jun 18, 2026 | May 10, 2026 |
| Debian | — | Upgrade libnet-cidr-lite-perl | Jul 12, 2026 | Jul 12, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | May 10, 2026 |
| Ubuntu | — | Upgrade libnet-cidr-lite-perlUpgrade libnet-cidr-lite-perl (Ubuntu Pro) | Jun 21, 2026 | Jun 18, 2026 |
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