Ollama Ollama Denial-of-Service Vulnerability via Custom GGUF Model Upload

Vulnerability

A denial-of-service vulnerability has been identified in Ollama Ollama versions through 0.3.14. This issue allows a malicious user to create a custom GGUF model file, upload it to the Ollama server, and deploy it. The uploaded model can cause the server to use an unlimited amount of memory, resulting in a denial-of-service condition.

Impact

Exploitation of this vulnerability can lead to a denial-of-service condition, causing the server to consume excessive memory and potentially become unresponsive.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
2.6
impact
2.5
exploitability
8.4
remediation
0.0
relevance
0.0
threat
6.4
urgency
2.9
incentive
5.8

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.