DEBIAN-CVE-2026-45191
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.
DEBIAN-CVE-2026-45191
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-45191
libnet-cidr-lite-perl
Source reference: /affected/0/package/name
- Affected versions
- 0.22-2
Source reference:
/affected/0/versions0.22-3~deb12u1Source reference:
/affected/0/versions - Fixed versions
- 0.22-3~deb12u2
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
libnet-cidr-lite-perl
Source reference: /affected/1/package/name
- Affected versions
- 0.22-2
Source reference:
/affected/1/versions0.22-3~deb12u1Source reference:
/affected/1/versions0.22-3~deb12u2Source reference:
/affected/1/versions0.22-3~deb13u1Source reference:
/affected/1/versions - Fixed versions
- 0.22-3~deb13u2
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
libnet-cidr-lite-perl
Source reference: /affected/2/package/name
- Affected versions
- 0.22-2
Source reference:
/affected/2/versions0.22-3Source reference:
/affected/2/versions0.22-3~deb12u1Source reference:
/affected/2/versions0.22-3~deb12u2Source reference:
/affected/2/versions0.22-3~deb13u1Source reference:
/affected/2/versions0.22-3~deb13u2Source reference:
/affected/2/versions0.23-1Source reference:
/affected/2/versions - Fixed versions
- 0.24-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.22-3~deb12u2"
}
]
}
],
"package": {
"name": "libnet-cidr-lite-perl",
"purl": "pkg:deb/debian/libnet-cidr-lite-perl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"0.22-2",
"0.22-3~deb12u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-45191.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.22-3~deb13u2"
}
]
}
],
"package": {
"name": "libnet-cidr-lite-perl",
"purl": "pkg:deb/debian/libnet-cidr-lite-perl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.22-2",
"0.22-3~deb12u1",
"0.22-3~deb12u2",
"0.22-3~deb13u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-45191.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.24-1"
}
]
}
],
"package": {
"name": "libnet-cidr-lite-perl",
"purl": "pkg:deb/debian/libnet-cidr-lite-perl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"0.22-2",
"0.22-3",
"0.22-3~deb12u1",
"0.22-3~deb12u2",
"0.22-3~deb13u1",
"0.22-3~deb13u2",
"0.23-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-45191.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56533 · Revision 1
- Added to Heist Feed
- Publisher date