PT-2026-46267 · Cpan · Net::Cidr::Set

Published 2026-06-03 · Updated 2026-06-04 · CVE-2026-49941

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Net::CIDR::Set versions prior to 0.21

Description The software fails to validate IP addresses. The add() function calls the encode() function to parse addresses; if the input does not resemble netmasks or network ranges, it is treated as a single IP address and passed back to itself as a 32-bit or 128-bit netmask. When a malformed IP address is provided, this process results in indefinite recursion, which can be exploited by an attacker to cause a denial of service.

Recommendations Update to version 0.21.

Fix

Uncontrolled Recursion

Weakness Enumeration

CWE-674

CWE-1287

Related Identifiers

CVE-2026-49941

OPENSUSE-SU-2026:10951-1

Affected Products

Net::Cidr::Set

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-49941 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10951-1 · Vendor Advisory
• https://suse.com/security/cve/CVE-2026-49940 · Note
• https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes · Note
• https://suse.com/security/cve/CVE-2026-49941 · Note
• http://openwall.com/lists/oss-security/2026/06/04/11 · Note