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Security audit

Linux Ollama

Security checks across malware telemetry and agentic risk

Overview

This is a coherent Linux Ollama setup guide, but it needs review because it asks users to expose a persistent AI router service and run network-sourced install commands without enough safety scoping.

Install only if you trust Ollama, Ollama Herd, and the publisher. Download and inspect installers before execution where possible, prefer pinned or verified packages, and do not open port 11435 beyond trusted hosts unless you add network controls such as subnet restrictions, VPN, authentication, and TLS.

SkillSpector

By NVIDIA
Vulnerability Patterns
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Tool MisuseTool Parameter Abuse, Chaining Abuse, Unsafe Defaults
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (3)

Missing User Warnings

Medium
Confidence
89% confidence
Finding
The skill explicitly instructs users to open TCP port 11435 in host firewalls but does not warn that this exposes the Ollama router to other hosts on the network. In context, this service is intended for multi-machine routing, so exposure may be necessary, but omitting access-control guidance increases the risk of unintended remote access on untrusted networks.

External Script Fetching

High
Category
Supply Chain
Content
### Step 1: Install Ollama on Linux

```bash
curl -fsSL https://ollama.ai/install.sh | sh
```

### Step 2: Install Linux Ollama Herd
Confidence
98% confidence
Finding
Piping a remotely fetched install script directly into sh executes unverified code from the network with no opportunity for inspection or integrity verification. If the source, transport, DNS, or hosting is compromised, users may run arbitrary code immediately on their systems.

Chaining Abuse

High
Category
Tool Misuse
Content
### Step 1: Install Ollama on Linux

```bash
curl -fsSL https://ollama.ai/install.sh | sh
```

### Step 2: Install Linux Ollama Herd
Confidence
98% confidence
Finding
The '| sh' pattern chains network retrieval directly into shell execution, removing any review boundary between download and execution. This materially increases exploitability because any compromise of the fetched content becomes immediate command execution.

VirusTotal

VirusTotal findings are pending for this skill version.

View on VirusTotal

Static analysis

No suspicious patterns detected.