jdx mise up to 2026.3.9 non-paranoid Mode mise.toml exec code injection

Summaryinfo

A vulnerability was found in jdx mise up to 2026.3.9 and classified as critical. This vulnerability affects the function exec of the file mise.toml of the component non-paranoid Mode. The manipulation results in code injection. This vulnerability is reported as CVE-2026-33646. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in jdx mise up to 2026.3.9. Affected is the function exec of the file mise.toml of the component non-paranoid Mode. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-33646 since 03/23/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

Upgrading to version 2026.3.10 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• jdx

Name

• mise

Version

• 2026.3.0
• 2026.3.1
• 2026.3.2
• 2026.3.3
• 2026.3.4
• 2026.3.5
• 2026.3.6
• 2026.3.7
• 2026.3.8
• 2026.3.9

Website

• Product: https://github.com/jdx/mise/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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