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CVE-2026-47211— Ouroboros: Remote Code Execution via Untrusted Project-Directory .env

Quick assessment

Affected
Q00 ouroboros
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.

Q00 Ouroboros是Q00个人开发者开源的一款区块链软件开发产品。 Q00 Ouroboros 0.39.0之前版本存在权限许可和访问控制问题漏洞，该漏洞源于从当前工作目录加载.env文件，未对执行相关的环境变量（如OUROBOROS_CLI_PATH、OPENCODE_CLI_PATH）进行有效验证，攻击者可利用恶意仓库中的脚本指向CLI路径变量，导致任意代码执行和系统接管。

CVSS 8.4 · High EPSS 0.19% · P8

Affected Version Matrix 1

VendorProduct Version RangeStatus
Q00 ouroboros < 0.39.0 affected
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I. Basic Information for CVE-2026-47211

Vulnerability Information
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Vulnerability Title
Ouroboros: Remote Code Execution via Untrusted Project-Directory .env
Source: CVE Program / CVE List V5
Vulnerability Description
Ouroboros is a local-first runtime for AI coding agents that records their actions and applies user-defined policies to constrain behavior. In versions prior to 0.39.0, if a user clones a malicious repository and runs Ouroboros commands within that directory, it can lead to arbitrary code execution and potential system takeover. The vulnerability stems from Ouroboros loading the .env file from the current working directory. Execution-affecting environment variables such as OUROBOROS_CLI_PATH, OPENCODE_CLI_PATH, and other backend selectors are accepted directly from this local .env. An attacker can include a malicious script in the repository and point the CLI path variable to it (e.g., OUROBOROS_CLI_PATH=./malicious_script.sh). When the user executes a command like ouroboros init or any command that instantiates the adapter, the malicious script is executed instead of the intended CLI. This issue has been fixed in version 0.39.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不可信的搜索路径
Source: CVE Program / CVE List V5
Vulnerability Title
Q00 Ouroboros 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Q00 Ouroboros是Q00个人开发者开源的一款区块链软件开发产品。 Q00 Ouroboros 0.39.0之前版本存在权限许可和访问控制问题漏洞，该漏洞源于从当前工作目录加载.env文件，未对执行相关的环境变量（如OUROBOROS_CLI_PATH、OPENCODE_CLI_PATH）进行有效验证，攻击者可利用恶意仓库中的脚本指向CLI路径变量，导致任意代码执行和系统接管。
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
Q00 ouroboros < 0.39.0 -

II. Public POCs for CVE-2026-47211

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 9120 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-47211

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Patches & Fixes for CVE-2026-47211 (2)

Vendor Advisories for CVE-2026-47211 (1)

IV. Related Vulnerabilities

Same product: ouroboros
Same vendor: Q00
Same weakness: CWE-426

V. Comments for CVE-2026-47211

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