Deno vulnerable to command Injection via incomplete shell metacharacter blocklist in node:child_process

Summary A command injection vulnerability exists in Deno's node:childprocess polyfill shell: true mode that bypasses the fix for CVE-2026-27190 GHSA-hmh4-3xvx-q5hr. An attacker who controls arguments passed to spawnSync or spawn with shell: true can execute arbitrary OS commands, bypassing Deno's...