CVE-2026-45191
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- EPSS probability
- 0.30%
- CWE
- CWE-1289
- Published
- 2026-05-10
- Last modified
- 2026-05-11
Affected products
- STIGTSP Net::CIDR::Lite
Weakness type
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