If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.CreditsJakub Ciolek - https://ciolek.dev/Referenceshttps://go.dev/cl/763767https://go.dev/issue/78334https://groups.google.com/g/golang-announce/c/0uYbvbPZRWUhttps://pkg.go.dev/vuln/GO-2026-4870
