CVE-2025-0317: Ollama denial of service via crafted GGUF model file upload

Summary

CVE-2025-0317 affects ollama/ollama versions <=0.3.14. A malicious user who can upload and create a customized GGUF model file on the Ollama server can trigger a division by zero error in the ggufPadding function. The server then crashes, resulting in a Denial of Service (DoS) attack. The weakness is classified as CWE-369 (Divide By Zero).

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Affected packages in the Exposure Registry

Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.

• github.com/ollama/ollamaGoLLM dependency since 2023-07-08 · 2 tracked dependents

Topics

• Inference infrastructure

Related items

• LowCloakFEM: Agentic FEM Code Generation for Red-Teaming Computational Resource ExhaustionSimilar attack · Arxiv (cs.CR + cs.CL + cs.LG)
• MediumThe Rise of LLMJacking: How Threat Actors Monetize Compromised Cloud and Model ResourcesSimilar attack · Google Threat Intelligence
• InfoThe Blind Spots of Detection: Adversarial Perturbation Attacks against Watchdogs in Distributed LLM InferenceSimilar attack · Arxiv (cs.CR + cs.CL + cs.LG)
• HighCVE-2026-118761: Kubeflow Pipelines decompression bomb in pipeline archive uploadSimilar attack · NVD/CVE Database
• LowOpenCode User Hit with Hostile Backlash After Reporting Free AI LoopholeSimilar attack · Socket Blog