CVE-2025-51471: Ollama cross-domain token exposure in WWW-Authenticate realm handling

Summary

CVE-2025-51471 is a cross-domain token exposure flaw in server.auth.getAuthorizationToken in Ollama 0.6.7. A remote attacker who controls a malicious realm value in a WWW-Authenticate header returned by the /api/pull endpoint can steal authentication tokens and bypass access controls. NVD has not yet provided an assessment.

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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