CVE-2026-42503

The CVE-2026-42503 issue affects gopls (golang.org/x/tools/gopls). When -listen (or -port) is used without an explicit host, gopls binds to 0.0.0.0, potentially allowing a malicious party on the same network to execute arbitrary code. This is described in the NVD entry and corroborated by multipl...

CVE-2026-42503 Accidental binding to INADDR_ANY might lead to RCE in golang.org/x/tools/gopls

gopls by default communicates via pipe. However, -port and -listen flags are supported as means of debugging. If -listen is given a value without an explicit host e.g. :8080, or -port is used, gopls will listen on 0.0.0.0. As a result, users might inadvertently cause gopls to bind 0.0.0.0. This...