Vulnerability · Published Oct 26, 2026 · Assigned by fortinet
CVE-2026-107656
Critical 9.6
In plain English
A critical-severity authentication bypass in FortiSandbox from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 58% of all known vulnerabilities).
Official 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
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | FortiSandbox | 5.0.0 – through 5.0.64.4.0 – through 4.4.94.2.1 – through 4.2.8 |
| Fortinet | FortiSandbox PaaS | 5.0.0 – through 5.0.64.4.0 – through 4.4.94.2.1 – through 4.2.8 |
Weakness: CWE-288 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C