CVE-2026-49941
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.
- Score
- CVSS 3.1 7.5 High
- Status
- Analyzed - 9b29abf9-4ab0-4765-b253-1875cd9b441e
- Published
- 2026-06-04
- Last modified
- 2026-06-04
- Weaknesses
- CWE-1287, CWE-674
Affected products
- Net\ (Rrwo)
- Netcidrset (Rrwo)
References
- https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes
- http://www.openwall.com/lists/oss-security/2026/06/04/11
