{"record":{"id":"a7fe6345b5450706","repo":"caddyserver/caddy","slug":"invalid-ip-address-s-v-a7fe63","errorCode":null,"errorMessage":"invalid IP address: '%s': %v","messagePattern":"invalid IP address: '(.+?)': (.+?)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"modules/caddytls/matchers.go","lineNumber":382,"sourceCode":"\t\t}\n\t\treturn false\n\t}\n\treturn (len(m.cidrs) == 0 || m.matches(ipAddr, m.cidrs)) &&\n\t\t(len(m.notCidrs) == 0 || !m.matches(ipAddr, m.notCidrs))\n}\n\nfunc (MatchRemoteIP) parseIPRange(str string) ([]netip.Prefix, error) {\n\tvar cidrs []netip.Prefix\n\tif strings.Contains(str, \"/\") {\n\t\tipNet, err := netip.ParsePrefix(str)\n\t\tif err != nil {\n\t\t\treturn nil, fmt.Errorf(\"parsing CIDR expression: %v\", err)\n\t\t}\n\t\tcidrs = append(cidrs, ipNet)\n\t} else {\n\t\tipAddr, err := netip.ParseAddr(str)\n\t\tif err != nil {\n\t\t\treturn nil, fmt.Errorf(\"invalid IP address: '%s': %v\", str, err)\n\t\t}\n\t\tip := netip.PrefixFrom(ipAddr, ipAddr.BitLen())\n\t\tcidrs = append(cidrs, ip)\n\t}\n\treturn cidrs, nil\n}\n\nfunc (MatchRemoteIP) matches(ip netip.Addr, ranges []netip.Prefix) bool {\n\treturn slices.ContainsFunc(ranges, func(prefix netip.Prefix) bool {\n\t\treturn prefix.Contains(ip)\n\t})\n}\n\n// UnmarshalCaddyfile sets up the MatchRemoteIP from Caddyfile tokens. Syntax:\n//\n//\tremote_ip <ranges...>\n//\n// Note: IPs and CIDRs prefixed with ! symbol are treated as not_ranges","sourceCodeStart":364,"sourceCodeEnd":400,"githubUrl":"https://github.com/caddyserver/caddy/blob/50e54ee279aa1e504fe218ca49ab6ae16c100410/modules/caddytls/matchers.go#L364-L400","documentation":"Error \"invalid IP address: '%s': %v\" thrown in caddyserver/caddy.","triggerScenarios":"Thrown at modules/caddytls/matchers.go:382 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Correct the IP address in the configuration; it must be a valid IPv4 or IPv6 address."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"50e54ee279aa1e504fe218ca49ab6ae16c100410","analyzedAt":"2026-08-15T09:20:21.641Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}