Description

NVIDIA NemoClaw for Linux contains a vulnerability in its installation scripts, where an attacker could cause a download of code without integrity check. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, information disclosure, and data tampering.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.5",
  "pubDate": "2026-08-25T21:17:29.560Z",
  "pubdate": "2026-08-25T21:17:29.560Z",
  "executiveSummary": "NVIDIA NemoClaw for Linux is susceptible to a vulnerability within its installation scripts involving the insecure retrieval of external code.\nThe flaw stems from a lack of cryptographic integrity verification during the automated download process, permitting an attacker to intercept or redirect the installation flow.\nThis vulnerability is classified as an insecure download/insufficient validation flaw, which allows for the execution of arbitrary, unauthorized code with the privileges of the installation process.\nSuccessful exploitation may lead to full system compromise, including privilege escalation, sensitive information disclosure, and unauthorized data tampering.\nThe impact is critical due to the potential for persistent backdooring of the target environment during the initial software setup phase.\nAttacker capabilities include the ability to serve malicious payloads if they can influence the network path or intercept the communication channel used by the NemoClaw installation script.\nNo specific authentication is required to trigger this vulnerability, as it resides in the inherent logic of the installation routine itself.",
  "technicalDetails": "The vulnerability resides in the NemoClaw installation script logic, which fetches remote binary or script components without implementing mandatory cryptographic checksum validation (e.g., SHA-256/512) or signature verification of the retrieved assets.\nThe root cause is a failure to establish a verified chain of trust between the client-side installer and the remote update/package server. By lacking integrity checks, the installer blindly executes content delivered over the network.\nAn attacker can exploit this via Man-in-the-Middle (MitM) positioning or by compromising the underlying repository or endpoint that the script targets. Since the script lacks validation, it cannot distinguish between legitimate updates and malicious payloads injected into the stream.\nAttack flow: 1. The victim initiates the NemoClaw installation script. 2. The script triggers a network request to download secondary installation components or configuration files. 3. The attacker intercepts the request (e.g., via DNS spoofing, ARP poisoning, or routing manipulation) and delivers a malicious payload in place of the expected legitimate file. 4. The script proceeds to write the malicious payload to the filesystem without verifying the integrity. 5. The script executes the malicious file, often with elevated permissions (root or sudo), resulting in code execution.\nThe vulnerable component is the installation script mechanism used to fetch external dependencies. Because the script likely runs with escalated privileges to perform system-level deployments, the malicious payload inherits these permissions immediately upon execution.\nPost-exploitation impact is severe; because the code is executed during the installation phase, the attacker can install persistent rootkits, exfiltrate environment variables, modify system configurations, or deploy further lateral movement tools within the host environment. The integrity of the entire NemoClaw deployment is compromised, rendering the installed software untrustworthy."
}