Vulnerability Report

CVE-2025-63389

Title: Critical authentication bypass in Ollama platform API endpoints

Auth Bypass

Proof Of Concept

PoC Available for CVE-2025-63389

CWE Category CWE-306

Published Date Dec 18, 2025

Modified Date Jan 22, 2026

Exploit Status Available

Score 9.8 CVSS v3.1

Exploit Probability (EPSS)

0.63%

Vulnerability Summary

CVE-2025-63389: 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.

Impacted Vendors

ollama 1

Reference Links

https://gist.github.com/Cristliu/48dae561696374744d9fced07a544ecd https://github.com/ollama/ollama/issues

CVSS v3.1

Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0

Severity CRITICAL

9.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-63389 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/nuclide-research/VisorGoose

View Code

January 22, 2026 MODIFIED

Vulnerability data updated via NVD.

January 22, 2026 MODIFIED

Vulnerability data updated via NVD.

December 30, 2025 MODIFIED

Vulnerability data or affected products updated.

December 18, 2025 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.