CVE-2026-107656 Fortinet FortiSandbox - Authentication Bypass

Fortinet FortiSandbox 4.2 all versions, 4.4.0 through 4.4.9, 5.0.0 through 5.0.6, and FortiSandbox PaaS versions contain an authentication bypass caused by alternate path or channel, letting attackers execute unauthorized code or commands via crafted HTTP requests, exploit requires network access.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
26 October 2026
Updated
27 October 2026
Weakness
CWE-288

Vendor fix

Update to the latest available version of FortiSandbox.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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