CVE-2025-15063
Unknown Unknown - Not Provided
Command Injection in Ollama MCP Server execAsync Enables RCE

Publication date: 2026-01-23

Last updated on: 2026-01-23

Assigner: Zero Day Initiative

Description
Ollama MCP Server execAsync Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ollama MCP Server. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the execAsync method. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-27683.
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Meta Information
Published
2026-01-23
Last Modified
2026-01-23
Generated
2026-06-16
AI Q&A
2026-01-23
EPSS Evaluated
2026-06-14
NVD
CVE-2025-15063
EUVD
EUVD-2026-4484
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
ollama mcp_server *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
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Executive Summary

CVE-2025-15063 is a critical remote code execution vulnerability in the Ollama MCP Server. It exists in the execAsync method due to improper validation of a user-supplied string before executing a system call. This flaw allows remote attackers to execute arbitrary code on the server without needing authentication. [1]

Impact Analysis

This vulnerability can have a severe impact by allowing attackers to execute arbitrary code remotely with the privileges of the service account running the server. This can compromise the confidentiality, integrity, and availability of the affected systems. [1]

Compliance Impact

This vulnerability poses a severe risk to the confidentiality, integrity, and availability of affected systems, which can lead to non-compliance with common standards and regulations such as GDPR and HIPAA that require protection of sensitive data and system integrity. Exploitation without authentication increases the risk of unauthorized data access or system compromise, potentially resulting in violations of these regulations. [1]

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