CVE-2026-45190
Publication date 15 June 2026
Last updated 26 June 2026
Ubuntu priority
Description
Net::CIDR::Lite versions before 0.24 for Perl does not properly validate IP address and CIDR mask inputs, which may allow IP ACL bypass. Inputs containing a trailing newline or non-ASCII digit characters pass the validators but are then re-encoded by the parser to a different address than the input string spelled. find() and bin_find() can match or miss addresses as a result. Example: my $cidr = Net::CIDR::Lite->new(); $cidr->add("::1\n/128"); $cidr->find("::1a"); # incorrectly returns true See also CVE-2026-45191.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libnet-cidr-lite-perl | 26.04 LTS resolute |
Fixed 0.22-2ubuntu0.26.04.2
|
| 25.10 questing |
Fixed 0.22-2ubuntu0.25.10.2
|
|
| 24.04 LTS noble |
Fixed 0.22-2ubuntu0.24.04.2
|
|
| 22.04 LTS jammy |
Fixed 0.22-1ubuntu0.2
|
|
| 20.04 LTS focal |
Fixed 0.21-2ubuntu0.1+esm2
|
|
| 18.04 LTS bionic |
Fixed 0.21-1ubuntu0.18.04.1~esm2
|
Get expanded security coverage with Ubuntu Pro
Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.
Get Ubuntu Pro 30-day free trialSeverity score breakdown
CVSS version: CVSS v3.0
Base score
6.5 · Medium
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
References
Related Ubuntu Security Notices (USN)
- USN-8453-1
- Net::CIDR::Lite vulnerabilities
- 18 June 2026