# CVE-2026-49941

## Summary

- **CVE ID:** CVE-2026-49941
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-1287, CWE-674
- **Published:** Jun 4, 2026
- **Last Modified:** Jun 4, 2026

## Description

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.

## Affected Products

- RRWO — Net::CIDR::Set (0)

## References

- [CNA](https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes)
- [CVE](http://www.openwall.com/lists/oss-security/2026/06/04/11)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.33%
- **EPSS Percentile:** 25.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._