CVE-2026-26083

critical

Published 2026-05-12 · Modified 2026-05-15

CVSS v3

9.8

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

CVSS v2

—

VIR risk

9.8

Description

A missing authorization vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.1, FortiSandbox 4.4.0 through 4.4.8, FortiSandbox Cloud 5.0.2 through 5.0.5, FortiSandbox PaaS 23.4 all versions, FortiSandbox PaaS 23.3 all versions, FortiSandbox PaaS 23.1 all versions, FortiSandbox PaaS 22.2 all versions, FortiSandbox PaaS 22.1 all versions, FortiSandbox PaaS 21.4 all versions, FortiSandbox PaaS 21.3 all versions, FortiSandbox PaaS 5.0.0 through 5.0.1, FortiSandbox PaaS 4.4.5 through 4.4.8 may allow an unauthenticated attacker to execute unauthorized code or commands via HTTP requests.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: psirt@fortinet.com — https://fortiguard.fortinet.com/psirt/FG-IR-26-136

Application impact

Vendor	Product	Versions	Fixed
fortinet	fortisandbox	`{"startIncluding":"4.4.0","endExcluding":"4.4.9"}`	`4.4.9`
fortinet	fortisandbox_cloud	`{"startIncluding":"5.0.2","endExcluding":"5.0.6"}`	`5.0.6`
fortinet	fortisandbox_cloud	`24.1.4436`
fortinet	fortisandbox_paas	`{"startIncluding":"4.4.5","endExcluding":"4.4.9"}`	`4.4.9`

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-136

CWEs

CWE-862

Verify integrity in audit chain (admin only). AS-IS.