Medium severity6.5NVD Advisory· Published May 10, 2026· Updated May 12, 2026
CVE-2026-45191
CVE-2026-45191
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.
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Affected products
2- Range: <0.24
Patches
Vulnerability mechanics
References
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