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CVE-2026-50187— Oh My Zsh: Arbitrary Code Execution in oh-my-zsh dotenv plugin via malicious .env files

Quick assessment

Affected
ohmyzsh ohmyzsh
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Oh My Zsh是Oh My Zsh组织的一款终端配置管理框架。 Oh My Zsh 2026-05-28之前版本存在代码注入漏洞，该漏洞源于dotenv插件将ZSH_DOTENV_FILE传递给source，可能导致以当前账户权限执行shell命令。

CVSS 8.8 · High EPSS 0.49% · P40

Affected Version Matrix 1

VendorProduct Version RangeStatus
ohmyzsh ohmyzsh < 2026-05-28 affected
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I. Basic Information for CVE-2026-50187

Vulnerability Information
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Vulnerability Title
Oh My Zsh: Arbitrary Code Execution in oh-my-zsh dotenv plugin via malicious .env files
Source: CVE Program / CVE List V5
Vulnerability Description
Oh My Zsh is a community-driven framework for managing Zsh configuration. Prior to 2026-05-28, the dotenv plugin in plugins/dotenv/dotenv.plugin.zsh passes ZSH_DOTENV_FILE to source after a directory change into a folder containing a .env file, allowing syntactically valid shell commands in the file to execute with the current account's privileges, including without a prompt when ZSH_DOTENV_PROMPT=false or after the default prompt accepts an empty Enter response. This issue is fixed in versions released after 2026-05-28.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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
Oh My Zsh 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Oh My Zsh是Oh My Zsh组织的一款终端配置管理框架。 Oh My Zsh 2026-05-28之前版本存在代码注入漏洞，该漏洞源于dotenv插件将ZSH_DOTENV_FILE传递给source，可能导致以当前账户权限执行shell命令。
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
ohmyzsh ohmyzsh < 2026-05-28 -

II. Public POCs for CVE-2026-50187

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker: VULNERABLE: commands from malicious .env executed on cd via dotenv plugin; exfiltrated PROOF_4c684357b4cdb9b0 as uid=0(root) gid=0(root) groups=0(root)
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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claude_code · 7819 chars
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III. Intelligence Information for CVE-2026-50187

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Patches & Fixes for CVE-2026-50187 (1)

Vendor Advisories for CVE-2026-50187 (1)

IV. Related Vulnerabilities

Same vendor: ohmyzsh
Same weakness: CWE-94

V. Comments for CVE-2026-50187

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