CVE-2026-71271 [HIGH] – Memos’ webhook URL validation, isReservedIP (internal/webhook/validate.go), checks a candi

Memos’ webhook URL validation, isReservedIP (internal/webhook/validate.go), checks a candidate IP against a reservedCIDRs list that omits 0.0.0.0/8 and never calls ip.IsUnspecified — unlike the correctly implemented sibling function isInternalIP in internal/httpgetter/html_meta.go, which does.