NVIDIA NeMoClaw Vulnerability Exposes Host Environment Variables

NVIDIA NeMoClaw Vulnerability Exposes Host Environment Variables

The National Vulnerability Database has detailed CVE-2026-24222, a high-severity vulnerability affecting NVIDIA NeMoClaw. The flaw resides within the sandbox environment’s initialization component. A remote attacker can exploit this by sending prompt-injected content, enabling the agent to bypass intended restrictions and read host environment variables.

This misconfiguration during sandbox creation, categorized as CWE-497 (Exposure of Sensitive Information Through Environmental Variables), directly leads to information disclosure. The CVSS score for this vulnerability is 8.6, indicating a significant risk, particularly given its network attack vector and low attack complexity.

While specific affected products are not detailed by the National Vulnerability Database, organizations utilizing NVIDIA NeMoClaw should prioritize evaluating their deployments. The attacker’s calculus here is straightforward: leverage a compromised prompt to extract valuable configuration data, laying groundwork for further exploitation or lateral movement. Defenders must ensure sandboxes are robustly configured to prevent any unauthorized access to host-level secrets.

What This Means For You

  • If your organization uses NVIDIA NeMoClaw, you must immediately review your sandbox configurations. Ensure strict controls are in place to prevent prompt injection from accessing host environment variables. This isn't just a theoretical issue; it's a direct path to sensitive information disclosure, which attackers will absolutely weaponize.

Related ATT&CK Techniques

🛡️ Detection Rules

3 rules · 6 SIEM formats

3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.

high T1039 Discovery

CVE-2026-24222 - NVIDIA NeMoClaw Host Environment Variable Exfiltration via Prompt Injection

Sigma YAML — free preview
title: CVE-2026-24222 - NVIDIA NeMoClaw Host Environment Variable Exfiltration via Prompt Injection
id: scw-2026-04-28-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit CVE-2026-24222 by looking for common Python environment variable access functions within the query parameters of a NeMoClaw API endpoint, indicating potential exfiltration of host environment variables through prompt injection.
author: SCW Feed Engine (AI-generated)
date: 2026-04-28
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-24222/
tags:
  - attack.discovery
  - attack.t1039
logsource:
    category: webserver
detection:
  selection:
      cs-uri-query|contains:
          - 'os.environ'
          - 'getenv'
      cs-uri|contains:
          - '/v1/chat/completions'
      cs-method: 'POST'
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

IDTypeIndicator
CVE-2026-24222 Information Disclosure NVIDIA NeMoClaw sandbox environment initialization component
CVE-2026-24222 Improper Access Control Prompt-injected content causing agent to read/exfiltrate host environment variables
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedApril 28, 2026 at 22:36 UTC

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