VULNERABILITY INTELLIGENCE
CVE-2026-45191
CVSS score6.5 MEDIUM
EPSS probability0.30%
CISA KEVNot currently listed
Published2026-05-10
Last modified2026-07-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
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.
Weakness classification
- CWE-1289: Improper Validation of Unsafe Equivalence in Input