CVE-2026-49983 Deno: process.loadEnvFile() bypasses env permission checks and mutates process.env with only read access

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.8.1, environment access is gated by the env permission. You can deny it with --deny-env, or restrict it to a specific allowlist with --allow-env=FOO,BAR. The expectation is that a program running without env permission cannot...

GHSA-4C8G-JVCX-V4HV Deno: process.loadEnvFile() bypasses env permission checks and mutates process.env with only read access

Summary In Deno, environment access is gated by the env permission. You can deny it with --deny-env, or restrict it to a specific allowlist with --allow-env=FOO,BAR. The expectation is that a program running without env permission cannot change process.env. process.loadEnvFile the Node-compatible...

PT-2026-50155

Name of the Vulnerable Software and Affected Versions Deno versions prior to 2.8.1 Description Environment access is managed by the env permission, which can be restricted via --deny-env or an allowlist using --allow-env=FOO,BAR. The process.loadEnvFile function, a Node-compatible API for loading...