CVE-2026-33646: Jdx Mise

Critical severity, CVSS 9.6. EPSS: 0.7% chance of exploitation in the next 30 days.

mise manages dev tools like node, python, cmake, and terraform. Prior to 2026.3.10, mise processes .tool-versions files through the Tera template engine during parsing, with the exec() function registered, enabling arbitrary command execution. Unlike .mise.toml files, .tool-versions files are not subject to trust verification in non-paranoid mode. This means an attacker can place a malicious .tool-versions file in a git repository, and when a victim with mise activated cds into the directory, arbitrary commands execute without any trust prompt. This vulnerability is fixed in 2026.3.10.

Affected products

• Jdx Mise: before 2026.3.10 (fixed in 2026.3.10)

Published 2026-06-26. Last modified 2026-06-29.