CVE-2026-107656
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Authentication Bypass in Fortinet FortiSandbox

Publication date: 2026-10-26

Last updated on: 2026-10-26

Assigner: Fortinet, Inc.

Description
An authentication bypass using an alternate path or channel vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.6, FortiSandbox 4.4.0 through 4.4.9, FortiSandbox 4.2 all versions, FortiSandbox PaaS 5.0.0 through 5.0.6, FortiSandbox PaaS 4.4 all versions, FortiSandbox PaaS 4.2 all versions may allow attacker to execute unauthorized code or commands via crafted HTTP requests

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Meta Information

Published
2026-10-26
Last Modified
2026-10-26
Generated
2026-10-26
AI Q&A
2026-10-26
EPSS Evaluated
N/A
NVD
CVE-2026-107656
EUVD
EUVD-2026-109831

Affected Vendors & Products

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-288 The product requires authentication, but the product has an alternate path or channel that does not require authentication.

Attack-Flow Graph

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Executive Summary

This is an authentication bypass vulnerability in Fortinet FortiSandbox versions 5.0.0 through 5.0.6, 4.4.0 through 4.4.9, and 4.2 (all versions), as well as FortiSandbox PaaS versions 5.0.0 through 5.0.6 and 4.2 (all versions). It allows attackers to bypass authentication via crafted HTTP requests, potentially enabling unauthorized code or command execution.

Impact Analysis

This vulnerability could allow attackers to gain unauthorized access to your FortiSandbox system or PaaS environment. Once exploited, they may execute malicious commands, steal sensitive data, or disrupt operations. Systems running affected versions are at high risk if exposed to untrusted networks.

Compliance Impact

This vulnerability could lead to unauthorized access and data breaches, violating compliance requirements for GDPR, HIPAA, and other regulations. Organizations may face legal penalties, reputational damage, and loss of customer trust if exploited.

Mitigation Strategies

Immediately upgrade FortiSandbox to a patched version. If upgrading is not possible, restrict network access to the device and monitor for unauthorized HTTP requests or code execution attempts.

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