Bug 2468675 (CVE-2026-45191) - CVE-2026-45191 perl-Net-CIDR-Lite: Net::CIDR::Lite: IP ACL bypass due to improper CIDR mask validation
Summary: CVE-2026-45191 perl-Net-CIDR-Lite: Net::CIDR::Lite: IP ACL bypass due to impr...
Keywords:
Status: NEW
Alias: CVE-2026-45191
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2488247 2488248
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-10 21:01 UTC by OSIDB Bzimport
Modified: 2026-06-12 04:12 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-05-10 21:01:24 UTC 
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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