CVE-2026-33646: CWE-94: Improper Control of Generation of Code ('Code Injection') in jdx mise
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.
AI Analysis
Technical Summary
The vulnerability in jdx mise involves improper control of code generation through the processing of .tool-versions files by the Tera template engine with the exec() function registered. This allows arbitrary command execution when a user with mise activated changes directories into a repository containing a malicious .tool-versions file. The lack of trust verification for .tool-versions files in non-paranoid mode enables this attack vector. The vulnerability is resolved in version 2026.3.10.
Potential Impact
An attacker can achieve arbitrary command execution on a victim's system without prior privileges or explicit trust prompts by placing a malicious .tool-versions file in a git repository. This can lead to complete system compromise, including confidentiality, integrity, and availability impacts as indicated by the CVSS score of 9.6.
Mitigation Recommendations
Upgrade to jdx mise version 2026.3.10 or later, where this vulnerability is fixed. Until then, avoid using mise in non-paranoid mode on untrusted repositories or directories containing .tool-versions files. There is no official patch link provided, so verify the upgrade from the vendor's official channels.
CVE-2026-33646: CWE-94: Improper Control of Generation of Code ('Code Injection') in jdx mise
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.
CVSS v3.1
Score 9.6critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in jdx mise involves improper control of code generation through the processing of .tool-versions files by the Tera template engine with the exec() function registered. This allows arbitrary command execution when a user with mise activated changes directories into a repository containing a malicious .tool-versions file. The lack of trust verification for .tool-versions files in non-paranoid mode enables this attack vector. The vulnerability is resolved in version 2026.3.10.
Potential Impact
An attacker can achieve arbitrary command execution on a victim's system without prior privileges or explicit trust prompts by placing a malicious .tool-versions file in a git repository. This can lead to complete system compromise, including confidentiality, integrity, and availability impacts as indicated by the CVSS score of 9.6.
Mitigation Recommendations
Upgrade to jdx mise version 2026.3.10 or later, where this vulnerability is fixed. Until then, avoid using mise in non-paranoid mode on untrusted repositories or directories containing .tool-versions files. There is no official patch link provided, so verify the upgrade from the vendor's official channels.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-23T15:23:42.217Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3eb5316e08203f7dd21fbe
Added to database: 06/26/2026, 17:21:53 UTC
Last enriched: 06/26/2026, 17:36:57 UTC
Last updated: 06/26/2026, 18:33:17 UTC
Views: 8
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