CVE-2025-63389: Ollama API endpoints missing authentication enable unauthorized model management

Summary

CVE-2025-63389 is a critical authentication bypass in the API endpoints of the Ollama platform, affecting versions prior to and including v0.12.3. The platform exposes multiple API endpoints without requiring authentication, which lets remote attackers perform unauthorized model management operations. The weakness is classified as CWE-306, Missing Authentication for Critical Function.

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

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