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CVE-2025-63389

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Date: December 18, 2025

A critical authentication bypass vulnerability exists in Ollama platform's API endpoints in versions prior to and including v0.12.3. The platform exposes multiple API endpoints without requiring authentication, enabling remote attackers to perform unauthorized model management operations.

Severity Score

Related Resources (5)

https://github.com/ollama/ollama/issues
https://gist.github.com/Cristliu/48dae561696374744d9fced07a544ecd
https://nvd.nist.gov/vuln/detail/CVE-2025-63389
https://github.com/ollama/ollama
https://www.mend.io/vulnerability-database/CVE-2025-63389

Severity Score

Weakness Type (CWE)

Improper Access Control

CWE-284

Missing Authentication for Critical Function

CWE-306

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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