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CVE-2025-59532— Codex has sandbox bypass due to bug in path configuration logic

Quick assessment

Affected
openai codex
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.

OpenAI Codex CLI是OpenAI开源的一个在终端中运行的轻量级编码代理软件。 OpenAI Codex CLI 0.2.0版本至0.38.0版本存在输入验证错误漏洞，该漏洞源于沙箱配置逻辑错误，可能导致任意文件写入和命令执行。

AI Predicted 7.5 Difficulty: Easy EPSS 0.89% · P59
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I. Basic Information for CVE-2025-59532

Vulnerability Information
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Vulnerability Title
Codex has sandbox bypass due to bug in path configuration logic
Source: CVE Program / CVE List V5
Vulnerability Description
Codex CLI is a coding agent from OpenAI that runs locally. In versions 0.2.0 to 0.38.0, due to a bug in the sandbox configuration logic, Codex CLI could treat a model-generated cwd as the sandbox’s writable root, including paths outside of the folder where the user started their session. This logic bypassed the intended workspace boundary and enables arbitrary file writes and command execution where the Codex process has permissions - this did not impact the network-disabled sandbox restriction. This issue has been patched in Codex CLI 0.39.0 that canonicalizes and validates that the boundary used for sandbox policy is based on where the user started the session, and not the one generated by the model. Users running 0.38.0 or earlier should update immediately via their package manager or by reinstalling the latest Codex CLI to ensure sandbox boundaries are enforced. If using the Codex IDE extension, users should immediately update to 0.4.12 for a fix of the sandbox issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OpenAI Codex CLI 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenAI Codex CLI是OpenAI开源的一个在终端中运行的轻量级编码代理软件。 OpenAI Codex CLI 0.2.0版本至0.38.0版本存在输入验证错误漏洞，该漏洞源于沙箱配置逻辑错误，可能导致任意文件写入和命令执行。
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
openai codex >= 0.2.0, < 0.39.0 -

II. Public POCs for CVE-2025-59532

# POC Description Source Link Shenlong Link
1 A Docker-based research environment for analyzing CVE-2025-59532, a path traversal vulnerability in OpenAI Codex CLI that allows arbitrary file write outside the intended workspace sandbox. Part of CMU Course : 18-739 Hacking & Offensive Security in Fall 2025 https://github.com/baktistr/cve-2025-59532-poc POC Details
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III. Intelligence Information for CVE-2025-59532

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Vendor Advisories for CVE-2025-59532 (1)

IV. Related Vulnerabilities

Same vendor: openai
Same weakness: CWE-20

V. Comments for CVE-2025-59532

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