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NVIDIA NemoClaw Vulnerability Allows AI Model Poisoning via Malicious Webpage

NVIDIA NemoClaw Vulnerability Allows AI Model Poisoning via Malicious Webpage

First seen 25 Aug 2026, 16:23 UTC • •

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ThreatCluster AI
ThreatCluster •August 26, 2026 at 15:55 UTC

A critical vulnerability (CVE-2026-65105) in NVIDIA's NemoClaw tool enables attackers to gain unauthenticated access to the local Ollama model server through a single visit to a malicious webpage. Discovered by Cyera's Oasis Security, the flaw stems from a network misconfiguration that exposes the Ollama API, allowing attackers to manipulate the AI agent's chat template and inject persistent malicious instructions. The exploit utilizes DNS rebinding to bypass security measures, leading to potential long-term corruption of AI agents. NVIDIA has released patches for MacOS and Linux, but a fix for Windows is still pending. The vulnerability highlights significant risks associated with AI agents and their deployment configurations. Attackers can exploit this flaw to alter how AI agents interpret messages, which can have severe implications for data integrity and security.

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Timeline

2025-11-16
Public exploit for CVE-2026-25253 released
A proof-of-concept exploit appeared on GitHub, lowering the barrier for opportunistic attackers.
GitHub
2026-08-25
CVE-2026-65105 published
NVIDIA's NemoClaw vulnerability disclosed, allowing unauthenticated access to local AI models.
Cyera
2026-08-25
Research findings published
Oasis Security's research reveals how attackers can exploit the vulnerability through DNS rebinding.
Darkreading
2026-08-26
Patches released
NVIDIA released patches for MacOS and Linux to address the vulnerability; Windows fix pending.
CSO Online

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