CVE-2026-26083
Fortinet FortiSandbox Missing Authorization Vulnerability (Code Execution)
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.
INFO
Published Date :
May 12, 2026, 6:16 p.m.
Last Modified :
May 15, 2026, 1:42 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-26083
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 6abe59d8-c742-4dff-8ce8-9b0ca1073da8 | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update Fortinet FortiSandbox and related products to fixed versions.
- Apply vendor patches to address the authorization flaw.
- Review and validate HTTP requests for proper authorization.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-26083.
| URL | Resource |
|---|---|
| https://fortiguard.fortinet.com/psirt/FG-IR-26-136 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-26083 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-26083
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-26083 vulnerability anywhere in the article.
-
TheCyberThrone
Fortinet Patch Tuesday – May 2026
OverviewFortinet published 11 advisories on Patch Tuesday describing as many bugs, including two dealing with critical-severity code execution security defects. While the company did not tag these two ... Read more
-
CybersecurityNews
Fortinet Patches Five Vulnerabilities Across FortiAP, FortiOS, and Enterprise Products
Fortinet released security advisories on May 12, 2026, addressing five vulnerabilities spanning its wireless access point controllers, network operating system, and enterprise management platforms, in ... Read more
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CybersecurityNews
Critical Fortinet FortiSandbox Vulnerability Enables Code Execution Attacks
A critical security flaw in Fortinet’s FortiSandbox platform is putting enterprise networks at serious risk, allowing unauthenticated attackers to execute arbitrary code or commands remotely, with no ... Read more
The following table lists the changes that have been made to the
CVE-2026-26083 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 15, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:fortinet:fortisandbox_cloud:24.1.4436:*:*:*:*:*:*:* *cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (excluding) 5.0.2 *cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:* versions from (including) 4.4.0 up to (excluding) 4.4.9 *cpe:2.3:a:fortinet:fortisandbox_cloud:*:*:*:*:*:*:*:* versions from (including) 5.0.2 up to (excluding) 5.0.6 *cpe:2.3:a:fortinet:fortisandbox_cloud:*:*:*:*:*:*:*:* versions from (including) 23.1.4245 up to (including) 23.4.4374 *cpe:2.3:a:fortinet:fortisandbox_paas:*:*:*:*:*:*:*:* versions from (including) 4.4.5 up to (excluding) 4.4.9 *cpe:2.3:a:fortinet:fortisandbox_paas:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (excluding) 5.0.2 *cpe:2.3:a:fortinet:fortisandbox_paas:*:*:*:*:*:*:*:* versions from (including) 21.3.4055 up to (including) 23.4.4374 Added Reference Type Fortinet, Inc.: https://fortiguard.fortinet.com/psirt/FG-IR-26-136 Types: Vendor Advisory -
New CVE Received by [email protected]
May. 12, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-862 Added Reference https://fortiguard.fortinet.com/psirt/FG-IR-26-136