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.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| RRWO | Net::CIDR::Set | <= 0.20 |
References
- https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changesRelease Notes
- http://www.openwall.com/lists/oss-security/2026/06/04/11Mailing List, Third Party Advisory
Timeline
- Published
- Jun 4, 2026
- Last modified
- Jul 22, 2026
- NVD status
- Analyzed