high7.5
CVE-2026-86287
Net::IP::LPM versions before 1.12 for Perl accept malformed prefix lengths.
Impact
Net::IP::LPM versions before 1.12 for Perl accept malformed prefix lengths. Non-numeric and non-ASCII prefix lengths are accepted and treated as 0. Integers over 31 bits are silently truncated. A single malformed mask will poison the lookup table. The result is that the lookup will silently succeed for every address. An allow-list will allow every address, and a deny-list will block every address.
Affected products
| Product | Affected versions |
|---|---|
| Net::IP::LPM | before 1.12 |
Versions were read from the advisory text. No structured product data has been published for this record yet.