github.compatch
https://github.com/stigtsp/Net-CIDR-Lite/commit/ca9542adec87110556601d7ce48381ea8d13e692.patch CVE-2026-45190
MEDIUM
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
Record summary
CVE-2026-45190 has a selected CVSS score of 6.5 (medium).
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.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationNone
AutomatableYes
Technical impactPartial
CISA Coordinator · SSVC 2.0.3 · Evaluated May 12, 2026 · Source: CVE List
Affected products and versions
1| Product | Source | Version range | Status |
|---|---|---|---|
Net::CIDR::LiteBrowse STIGTSP / Net::CIDR::LiteDefault status: unaffected | CVE List | Before 0.24 | affected |
References
4metacpan.orgrelease notes
https://metacpan.org/release/STIGTSP/Net-CIDR-Lite-0.24/changes nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-45190 cve.orgrelated
https://www.cve.org/CVERecord?id=CVE-2026-45191