| Name | CVE-2026-45190 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libnet-cidr-lite-perl (PTS) | bullseye | 0.22-1 | vulnerable |
| bookworm | 0.22-3~deb12u1 | vulnerable |
| trixie | 0.22-3~deb13u1 | vulnerable |
| forky, sid | 0.24-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[trixie] - libnet-cidr-lite-perl <no-dsa> (Minor issue; will be fixed via point release)
[bookworm] - libnet-cidr-lite-perl <no-dsa> (Minor issue; will be fixed via point release)
[bullseye] - libnet-cidr-lite-perl <postponed> (Minor issue, validation)
https://github.com/stigtsp/Net-CIDR-Lite/commit/ca9542adec87110556601d7ce48381ea8d13e692 (0.24)
https://www.openwall.com/lists/oss-security/2026/05/10/6
https://lists.security.metacpan.org/cve-announce/msg/39920372/