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DEBIAN-CVE-2026-49940

Type: advisorySource: OSV1 source record

Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks. Unicode digits such as the Arabic-Indic One (U+0661) were accepted but not properly parsed as numbers. This could allow network masks to accept larger networks.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-49940

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-2026-49940

libnet-cidr-set-perl

Source reference: /affected/0/package/name

Affected versions
0.13-4

Source reference: /affected/0/versions

0.13-5

Source reference: /affected/0/versions

0.15-1

Source reference: /affected/0/versions

0.19-1

Source reference: /affected/0/versions

0.20-1

Source reference: /affected/0/versions

0.21-1

Source reference: /affected/0/versions

0.22-1

Source reference: /affected/0/versions

0.23-1

Source 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/versions

0.19-1

Source reference: /affected/2/versions

0.20-1

Source 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-2026-49940.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-2026-49940.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-2026-49940.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#57207 · Revision 1
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Publisher date
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