CVE-2026-126233 File upload in FortiAnalyzer
An authenticated administrator can upload arbitrary dangerous files to FortiAnalyzer and FortiManager via crafted requests.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Harmful if only installed
- No
- Needs a specific call
- No
- Fix
- None listed
What is CVE-2026-126233?
CVE-2026-126233 is a high-severity unrestricted file upload vulnerability in Fortinet FortiAnalyzer, published on 11 Nov 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A unrestricted upload of file with dangerous type vulnerability in Fortinet FortiAnalyzer 8.0.0 through 8.0.1, FortiAnalyzer 7.6.0 through 7.6.7, FortiAnalyzer 7.4.0 through 7.4.11, FortiAnalyzer 7.2.0 through 7.2.12, FortiAnalyzer Cloud 8.0.0 through 8.0.1, FortiAnalyzer Cloud 7.6.0 through 7.6.7, FortiAnalyzer Cloud 7.4.1 through 7.4.11, FortiAnalyzer Cloud 7.2.1 through 7.2.12, FortiManager 8.0.0 through 8.0.1, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.11, FortiManager 7.2.0 through 7.2.12, FortiManager Cloud 8.0.0 through 8.0.1, FortiManager Cloud 7.6.0 through 7.6.7, FortiManager Cloud 7.4.1 through 7.4.11, FortiManager Cloud 7.2.1 through 7.2.12 may allow an authenticated administrator to upload arbitrary files via specially crafted requests.
Weakness: CWE-434
Which versions are affected by CVE-2026-126233?
An affected version is exposed as installed. No special setting or call is needed.
How do I fix CVE-2026-126233?
No fix has been published for CVE-2026-126233 yet. Limit exposure of the affected software until one is available.
Upgrade, check uploaded files against an allow-list of types, and store them where they cannot be executed. More about Unrestricted file upload.
Is CVE-2026-126233 being exploited?
There is no known exploitation of CVE-2026-126233 in the wild and no public exploit code.
Sources
Also known as GHSA-q9c8-4m86-x4pp.