CVE-2026-45191
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductNet::CIDR::Lite
PublishedMay 10, 2026
First seenMay 10, 2026
Weakness typeCWE-1289CWE-1289
How to fix
Update
- STIGTSP Net::CIDR::Lite0.24 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| STIGTSP Net::CIDR::Lite | v < 0.24 | 0.24 |
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