CVE-2026-33646
mise: Arbitrary Code Execution via Tera Templates in .tool-versions Files (Trust Bypass)
CRITICAL 9.6EPSS 0.7%
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
- jdx · mise
- CVSS v3.1 GITHUB
- 9.6 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - EPSS
- 0.69% chance of exploitation in the next 30 days, 52nd percentile
- Published
- 2026-06-26
- Updated
- 2026-06-29