Free AI Safety Workshop — in collaboration with explainx.aiSave your seat
AgentbeamBeta
AI agent vulnerability · Ollama

CVE-2024-8063: Ollama Divide by Zero Vulnerability

highCVSS 3.0 7.5GHSA-2xf2-gjm6-g2c6

A divide by zero vulnerability exists in ollama/ollama version v0.3.3. The vulnerability occurs when importing GGUF models with a crafted type for blockcount in the Modelfile. This can lead to a denial of service (DoS) condition when the server processes the model, causing it to crash.

Published Mar 20, 2025 · Updated Jun 6, 2026

Affected packages

github.com/ollama/ollama

Ecosystem
Go
Affected
<= 0.3.3
Fixed in
No patched version yet
Check
go list -m github.com/ollama/ollama

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

A divide by zero vulnerability exists in ollama/ollama version v0.3.3. The vulnerability occurs when importing GGUF models with a crafted type for block_count in the Modelfile. This can lead to a denial of service (DoS) condition when the server processes the model, causing it to crash.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

More Ollama vulnerabilities

All Ollama entries