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CVE-2026-33646— mise: Arbitrary Code Execution via Tera Templates in .tool-versions Files (Trust Bypass)

Quick assessment

Affected
jdx mise
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

jdx mise是jdx个人开发者开源的一个多语言版本管理器。 jdx mise 2026.3.10之前版本存在代码注入漏洞，该漏洞源于解析.tool-versions文件时通过Tera模板引擎处理并注册了exec()函数，可能导致任意命令执行，攻击者可放置恶意文件在受害者切换目录时触发命令执行而无信任提示。

CVSS 9.6 · Critical EPSS 0.69% · P52

Affected Version Matrix 1

VendorProduct Version RangeStatus
jdx mise < 2026.3.10 affected
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I. Basic Information for CVE-2026-33646

Vulnerability Information
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Vulnerability Title
mise: Arbitrary Code Execution via Tera Templates in .tool-versions Files (Trust Bypass)
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
jdx mise 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
jdx mise是jdx个人开发者开源的一个多语言版本管理器。 jdx mise 2026.3.10之前版本存在代码注入漏洞，该漏洞源于解析.tool-versions文件时通过Tera模板引擎处理并注册了exec()函数，可能导致任意命令执行，攻击者可放置恶意文件在受害者切换目录时触发命令执行而无信任提示。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
jdx mise < 2026.3.10 -

II. Public POCs for CVE-2026-33646

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III. Intelligence Information for CVE-2026-33646

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Vendor Advisories for CVE-2026-33646 (1)

Same Patch Batch · jdx · 2026-06-26 · 4 CVEs total

CVE-2026-55441 8.6 HIGH mise: Arbitrary command execution via task-include files in an untrusted, config-less repo
CVE-2026-55448 6.3 MEDIUM mise: Local credential_command executes untrusted config
CVE-2026-54557 5.5 MEDIUM mise HTTP backend uses raw version path for install symlink destination

IV. Related Vulnerabilities

Same product: mise
Same vendor: jdx
Same weakness: CWE-94

V. Comments for CVE-2026-33646

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