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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.

PUBLISHED Reserved 2025-12-23 | Published 2026-01-23 | Updated 2026-01-23 | Assigner zdi




CRITICAL: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

Default status
unknown

80cf2e17cfc144963a475b619093a2d13c13dbc9
affected

References

www.zerodayinitiative.com/advisories/ZDI-26-020/ (ZDI-26-020)

cve.org (CVE-2025-15063)

nvd.nist.gov (CVE-2025-15063)

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