Path Traversal Vulnerability in Fortinet FortiSandbox Products
CVE-2026-39813

9.1CRITICAL

Key Information:

Vendor

Fortinet
Status
Fortisandbox
Fortisandbox Cloud
Vendor
CVE Published:
14 April 2026

What is CVE-2026-39813?

A path traversal vulnerability exists in Fortinet's FortiSandbox, affecting versions 5.0.0 through 5.0.5 and 4.4.0 through 4.4.8. This vulnerability may enable attackers to exploit the system by manipulating file directories, potentially leading to privilege escalation. Proper input validation is crucial to mitigating this risk and ensuring secure operation of affected products.

Affected Version(s)

FortiSandbox 5.0.0 <= 5.0.5

FortiSandbox 4.4.0 <= 4.4.8

FortiSandbox Cloud 24.1

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-112

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.