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CVE-2026-86287 - Net::IP::LPM versions before 1.12 for Perl accept malformed prefix lengths

CVE ID : CVE-2026-86287 Published : Sept. 7, 2026, 7:17 p. m. • 1 hour, 32 minutes ago Description : 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. Severity: 0.0 • NA