CVE-2024-3234 — CRITICAL (CVSS 9.8) AI Security Vulnerability

CISO Take

Any self-hosted ChuanhuChatGPT instance exposes its config.json—including LLM provider API keys—to unauthenticated remote attackers via a trivial path traversal. Rotate all API keys immediately on affected deployments, upgrade to the version released post-2024-03-05, and block external access until patched. Assume API keys are compromised on any unpatched internet-facing instance.

Risk Assessment

CVSS 9.8 with no authentication, no user interaction, and network accessibility makes this exploitable by any opportunistic attacker—no AI/ML knowledge required. The blast radius extends well beyond the application: stolen LLM API keys enable unauthorized usage at the victim's expense, access to other services sharing the key, and potential data exfiltration from connected AI backends. Self-hosted AI chat interfaces are routinely deployed by development and research teams with minimal security hardening, significantly increasing real-world exposure. The chained dependency on CVE-2023-51449 (already public) means exploit code is likely available.

Affected Systems

Package	Ecosystem	Vulnerable Range	Patched
chuanhuchatgpt	pip	—	No patch

Do you use chuanhuchatgpt? You're affected.

Severity & Risk

CVSS 3.1

9.8 / 10

EPSS

84.0%

chance of exploitation in 30 days

Higher than 99% of all CVEs

Source: EPSS v3 — FIRST.org

Exploitation Status

Exploit Available

Exploitation: MEDIUM

Sophistication

Trivial

Exploitation Confidence

medium

○ CISA SSVC: Public PoC

○ Public PoC indexed (trickest/cve)

○ Nuclei detection template available

○ EPSS exploit prediction: 84%

Composite signal derived from CISA KEV, CISA SSVC, EPSS, trickest/cve, and Nuclei templates.

Attack Surface

AV Network

AC Low

PR None

UI None

S Unchanged

C High

I High

A High

Recommended Action

6 steps

IMMEDIATE

Rotate all API keys stored in config.json on any deployed instance—treat them as fully compromised.
PATCH

Upgrade ChuanhuChatGPT to the version post-2024-03-05 (commit 6b8f7db347b390f6f8bd07ea2a4ef01a47382f00) which pins a patched Gradio version.
DETECT

Review LLM provider API usage logs for anomalous call volumes, unexpected geographic origins, or off-hours activity.
HARDEN

Never store API keys in web-accessible config files; use environment variables or a secrets manager (Vault, AWS Secrets Manager).
RESTRICT

Place self-hosted AI UIs behind VPN or IP allowlist—never expose Gradio interfaces directly to the internet.
AUDIT

Parse web server access logs for path traversal patterns: requests containing '../', '%2e%2e', or '%252e%252e' sequences targeting the application.

CISA SSVC Assessment

Decision Attend

Exploitation poc

Automatable Yes

Technical Impact total

Source: CISA Vulnrichment (SSVC v2.0). Decision based on the CISA Coordinator decision tree.

Classification

Data Extraction Auth Bypass Data Leakage Framework API AML.T0025 - Exfiltration via Cyber Means AML.T0037 - Data from Local System AML.T0049 - Exploit Public-Facing Application AML.T0055 - Unsecured Credentials AML.T0106 - Exploitation for Credential Access

Compliance Impact

This CVE is relevant to:

EU AI Act

Art. 15 - Accuracy, robustness and cybersecurity

ISO 42001

A.9.3 - AI system security

NIST AI RMF

MANAGE 2.2 - Mechanisms are in place to sustain risk management over the AI lifecycle

OWASP LLM Top 10

LLM02 - Sensitive Information Disclosure LLM03 - Supply Chain Vulnerabilities

Frequently Asked Questions

What is CVE-2024-3234?

Any self-hosted ChuanhuChatGPT instance exposes its config.json—including LLM provider API keys—to unauthenticated remote attackers via a trivial path traversal. Rotate all API keys immediately on affected deployments, upgrade to the version released post-2024-03-05, and block external access until patched. Assume API keys are compromised on any unpatched internet-facing instance.

Is CVE-2024-3234 actively exploited?

Proof-of-concept exploit code is publicly available for CVE-2024-3234, increasing the risk of exploitation.

How to fix CVE-2024-3234?

1. IMMEDIATE: Rotate all API keys stored in config.json on any deployed instance—treat them as fully compromised. 2. PATCH: Upgrade ChuanhuChatGPT to the version post-2024-03-05 (commit 6b8f7db347b390f6f8bd07ea2a4ef01a47382f00) which pins a patched Gradio version. 3. DETECT: Review LLM provider API usage logs for anomalous call volumes, unexpected geographic origins, or off-hours activity. 4. HARDEN: Never store API keys in web-accessible config files; use environment variables or a secrets manager (Vault, AWS Secrets Manager). 5. RESTRICT: Place self-hosted AI UIs behind VPN or IP allowlist—never expose Gradio interfaces directly to the internet. 6. AUDIT: Parse web server access logs for path traversal patterns: requests containing '../', '%2e%2e', or '%252e%252e' sequences targeting the application.

What systems are affected by CVE-2024-3234?

This vulnerability affects the following AI/ML architecture patterns: Self-hosted AI chat interfaces, Gradio-based ML UI deployments, API key-dependent AI services, Internal LLM chatbot deployments.

What is the CVSS score for CVE-2024-3234?

CVE-2024-3234 has a CVSS v3.1 base score of 9.8 (CRITICAL). The EPSS exploitation probability is 83.96%.

Technical Details

NVD Description

The gaizhenbiao/chuanhuchatgpt application is vulnerable to a path traversal attack due to its use of an outdated gradio component. The application is designed to restrict user access to resources within the `web_assets` folder. However, the outdated version of gradio it employs is susceptible to path traversal, as identified in CVE-2023-51449. This vulnerability allows unauthorized users to bypass the intended restrictions and access sensitive files, such as `config.json`, which contains API keys. The issue affects the latest version of chuanhuchatgpt prior to the fixed version released on 20240305.

Exploitation Scenario

An attacker scans Shodan or Censys for publicly exposed Gradio interfaces on ports 7860-7861, identifying ChuanhuChatGPT instances. Leveraging the published CVE-2023-51449 path traversal technique against the outdated bundled Gradio, they craft an HTTP GET request that escapes the web_assets directory and retrieves config.json in a single unauthenticated request. The OpenAI API key is extracted in seconds and immediately used to run LLM queries at the victim's expense or resold. In targeted scenarios, the attacker uses the key to access organizational chat histories stored in connected services, or pivots to other cloud resources if the key has overly broad permissions.