CVE-2026-107656 — CRITICAL (9.8)

Vulnerability 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

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-288

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-185

FAQ

What is CVE-2026-107656?

CVE-2026-107656 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 Pa...

How severe is CVE-2026-107656?

CVE-2026-107656 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-107656?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.