DEBIAN-CVE-2026-49942
Net::CIDR::Set versions through 0.20 for Perl did not validate network masks. The mask portion of a network mask could contain Unicode digits such as the Arabic-Indic One (U+0661), or non-digits, which were ignored. This could allow network masks to accept larger networks. Leading zeros were also accepted, but treated as decimal instead of octal. This could lead to confusion about what networks are acceptable.
DEBIAN-CVE-2026-49942
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-2026-49942
libnet-cidr-set-perl
Source reference: /affected/0/package/name
- Affected versions
- 0.13-4
Source reference:
/affected/0/versions0.13-5Source reference:
/affected/0/versions0.15-1Source reference:
/affected/0/versions0.19-1Source reference:
/affected/0/versions0.20-1Source reference:
/affected/0/versions0.21-1Source reference:
/affected/0/versions0.22-1Source reference:
/affected/0/versions0.23-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libnet-cidr-set-perl
Source reference: /affected/1/package/name
- Affected versions
- 0.15-1
Source reference:
/affected/1/versions - Fixed versions
- 0.15-1+deb13u1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
libnet-cidr-set-perl
Source reference: /affected/2/package/name
- Affected versions
- 0.15-1
Source reference:
/affected/2/versions0.19-1Source reference:
/affected/2/versions0.20-1Source reference:
/affected/2/versions - Fixed versions
- 0.21-1
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"
}
]
}
],
"package": {
"name": "libnet-cidr-set-perl",
"purl": "pkg:deb/debian/libnet-cidr-set-perl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"0.13-4",
"0.13-5",
"0.15-1",
"0.19-1",
"0.20-1",
"0.21-1",
"0.22-1",
"0.23-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49942.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.15-1+deb13u1"
}
]
}
],
"package": {
"name": "libnet-cidr-set-perl",
"purl": "pkg:deb/debian/libnet-cidr-set-perl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.15-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49942.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.21-1"
}
]
}
],
"package": {
"name": "libnet-cidr-set-perl",
"purl": "pkg:deb/debian/libnet-cidr-set-perl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"0.15-1",
"0.19-1",
"0.20-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49942.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57226 · Revision 1
- Added to Heist Feed
- Publisher date