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CVE-2026-55441— mise: Arbitrary command execution via task-include files in an untrusted, config-less repository

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 2026.6.4之前版本存在安全漏洞，该漏洞源于trust功能对任务包含文件的加载路径未进行信任检查，当存在任务包含目录而无配置文件时，会因为默认包含和tera字段渲染导致任意命令执行。

CVSS 8.6 · High EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
jdx mise < 2026.6.4 affected
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I. Basic Information for CVE-2026-55441

Vulnerability Information
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Vulnerability Title
mise: Arbitrary command execution via task-include files in an untrusted, config-less repository
Source: CVE Program / CVE List V5
Vulnerability Description
mise manages dev tools like node, python, cmake, and terraform. Prior to 2026.6.4, mise's trust feature gates config files (mise.toml, .tool-versions) through trust_check, but task-include files are loaded on a path that never reaches it. When a directory has a task-include dir (mise-tasks/, .mise/tasks/, …) but no config file, mise falls back to the default includes and renders each task's tera fields — and that tera environment has exec() registered. A {{ exec(command='…') }} in any rendered field runs arbitrary commands the moment the tasks are merely listed. There's no config file to gate on, so no trust prompt ever appears. Read-only commands trigger it: mise tasks, mise task ls, mise run, mise tasks --usage (the query shell completion runs on Tab). The victim only has to cd into a cloned repo and list or tab-complete a task. This vulnerability is fixed in 2026.6.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
jdx mise 权限许可和访问控制问题漏洞
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 2026.6.4之前版本存在安全漏洞，该漏洞源于trust功能对任务包含文件的加载路径未进行信任检查，当存在任务包含目录而无配置文件时，会因为默认包含和tera字段渲染导致任意命令执行。
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 < 2026.6.4 -

II. Public POCs for CVE-2026-55441

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III. Intelligence Information for CVE-2026-55441

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Vendor Advisories for CVE-2026-55441 (1)

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

CVE-2026-33646 9.6 CRITICAL mise: Arbitrary Code Execution via Tera Templates in .tool-versions Files (Trust Bypass)
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-78

V. Comments for CVE-2026-55441

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