CVE-2026-64879
Received Received - Intake

Command Injection in File Upload via Audit Function

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: Tenable Network Security, Inc.

Description
A filename supplied during file upload is not properly sanitized before being used in system command execution, allowing an attacker to inject shell metacharacters and achieve command injection via the audit file upload functionality.

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Meta Information

Published
2026-07-21
Last Modified
2026-07-21
Generated
2026-07-22
AI Q&A
2026-07-21
EPSS Evaluated
N/A
NVD
CVE-2026-64879

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

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

This vulnerability involves improper sanitization of a filename during file upload, which is then used in system command execution. An attacker can inject shell metacharacters to execute arbitrary commands through the audit file upload feature.

Detection Guidance

This vulnerability involves improper sanitization of filenames during file uploads, leading to command injection. To detect it, monitor file upload endpoints for unusual filenames containing shell metacharacters like semicolons, backticks, or pipes. Check server logs for failed command executions or unexpected system calls during uploads. Use network traffic analysis tools to inspect upload requests for suspicious payloads.

Impact Analysis

This vulnerability allows attackers to execute arbitrary commands on the affected system with the privileges of the user running the application. This could lead to unauthorized access, data theft, or system compromise.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements such as GDPR (data protection) or HIPAA (health information privacy). Organizations may face legal penalties or reputational damage.

Mitigation Strategies

Immediately disable or restrict file upload functionality until proper input sanitization is implemented. Review and sanitize all filenames used in system commands to prevent shell metacharacter injection. Apply patches or updates if available from the vendor.

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