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CVE-2026-26084 is an improper access control vulnerability in the shared FortiSandbox web interface. Affected FortiSandbox 5.0.0 through 5.0.5 and 4.4.0 through 4.4.8, along with FortiSandbox Cloud and FortiSandbox PaaS 5.0.4 through 5.0.5, do not properly enforce authorization for certain internal API requests. An unauthenticated remote attacker can submit crafted HTTP requests to obtain sensitive information.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A CVSS 8.9 unauthenticated information-disclosure vulnerability caused by improper access control in the FortiSandbox web interface. Attackers can bypass authentication checks to retrieve sensitive data such as configuration details, logs, sandbox configuration, and sample metadata; the content does not describe data modification or remote code execution.
A high-severity unauthenticated information-disclosure vulnerability caused by improper access control in the FortiSandbox graphical web interface. It can expose sensitive configuration, log, and operational data without valid credentials, although the content does not describe data modification or code execution.
An improper access-control vulnerability (CWE-284) in affected Fortinet FortiSandbox deployments that permits unauthenticated network-based attackers to access sensitive information through crafted HTTP requests. The supplied CVSS v3.1 vector is AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.