CVE-2026-33646

CRITICAL

mise: Arbitrary Code Execution via Tera Templates in .tool-versions Files (Trust Bypass)

Title source: cna
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 9.6
EPSS 0.0038
EPSS Percentile 31.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-94
Status published
Products (2)
crates.io/mise 0 - 2026.3.10crates.io
jdx/mise < 2026.3.10
Published Jun 26, 2026
Tracked Since Jun 26, 2026