PT-2026-46268 · Rrwo · Net::Cidr::Set

Published 2026-06-04 · Updated 2026-06-04 · CVE-2026-49942

Mitre

CVSS v3.1

7.3

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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.

Fix

Weakness Enumeration

CWE-1289

Related Identifiers

CVE-2026-49942

Affected Products

Net::Cidr::Set

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-45191 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-40911 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-49942 · Security Note
• https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes · Note