DEBIAN-CVE-2026-49941
Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses. The add method called the _encode method to parse addresses. If the addresses did not look like netmasks or network ranges, then they were assumed to single IP addresses and passed back to itself as a 32-bit or 128-bit netmask. If the argument was not a well-formed IP address, then this would lead to indefinite recursion. An attacker could use this to cause a denial of service.
DEBIAN-CVE-2026-49941
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-2026-49941
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-2026-49941.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-2026-49941.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-2026-49941.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57214 · Revision 1
- Added to Heist Feed
- Publisher date