CVE-2026-86287 — Net::IP::LPM versions before 1.12 for Perl accept malformed prefix lengths
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 si…
Published: 2026-09-07 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7