{"schema_version":"1.9.0","id":"BIT-golang-2026-39836","published":"2026-05-11T05:44:39.589Z","modified":"2026-09-08T08:47:49.992576385Z","aliases":["CVE-2026-39836","GO-2026-4971"],"summary":"Panic in Dial and LookupPort when handling NUL byte on Windows in net","details":"The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL (0).","affected":[{"package":{"name":"golang","ecosystem":"Bitnami","purl":"pkg:bitnami/golang"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.25.10"},{"introduced":"1.26.0-0"},{"fixed":"1.26.3"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/golang/BIT-golang-2026-39836.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"references":[{"type":"FIX","url":"https://go.dev/cl/775320"},{"type":"REPORT","url":"https://go.dev/issue/79006"},{"type":"REPORT","url":"https://groups.google.com/g/golang-announce/c/qcCIEXso47M"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39836"},{"type":"ADVISORY","url":"https://pkg.go.dev/vuln/GO-2026-4971"}],"database_specific":{"cpes":["cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*"],"severity":"High"}}