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CVE-2026-49940

6.5 MEDIUM

Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks

Published: 2026-06-04 · Last updated: 2026-06-08

Severity and scoring

CVSS
6.5 MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE
CWE-1289

Affected products

VendorProduct
rrwonet\

Description

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.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-49942 — Net::CIDR::Set versions through 0.20 for Perl did not validate network masks (7.3 HIGH)
  • CVE-2026-49941 — Net::CIDR::Set versions through 0.20 for Perl did not validate IP addresses (7.5 HIGH)

Same CWE

  • CVE-2026-42462 — Fedify is a TypeScript library for building federated server apps powered by ActivityPub (7.0 HIGH)
  • CVE-2026-49942 — Net::CIDR::Set versions through 0.20 for Perl did not validate network masks (7.3 HIGH)
  • CVE-2026-47674 — Hono is a Web application framework that provides support for any JavaScript runtime (5.3 MEDIUM)
  • CVE-2026-39821 — The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label (9.6 CRITICAL)
  • CVE-2026-41213 — @node-oauth/oauth2-server is a module for implementing an OAuth2 server in Node.js (5.9 MEDIUM)