Is CVE-2026-126234 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-126234 being exploited in the wild.

How severe is CVE-2026-126234?

High severity, with a CVSS score of 7.2, published 11 November 2026.

Which products and versions are affected?

Fortinet Fortianalyzer 8.0.0; Fortinet Fortianalyzer Cloud 8.0.0; Fortinet FortiManager 8.0.0; Fortinet FortiManager Cloud 8.0.0.

Is there a fix for CVE-2026-126234?

Yes: fixed in FortiAnalyzer 8.0.1 or above; FortiAnalyzer Cloud 8.0.1 or above; FortiManager 8.0.1 or above; FortiManager Cloud 8.0.1 or above. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-126234 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-126234?

Check whether you run Fortinet Fortianalyzer, Fortinet Fortianalyzer Cloud, Fortinet FortiManager or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-126234: Fortinet FortiAnalyzer and FortiManager template injection

CVE-2026-126234 · Severity: high · CVSS 7.2 · Published 2026-11-11

FortiAnalyzer and FortiManager are centralized management and log analysis platforms used by enterprises to monitor and control network security devices. An authenticated attacker with limited privileges can inject malicious template code into API requests to execute arbitrary commands on these systems, potentially compromising the security infrastructure that protects an organization's entire network.

Technologies: Fortinet Fortianalyzer, Fortinet Fortianalyzer Cloud, Fortinet FortiManager, Fortinet FortiManager Cloud. Vendors: Fortinet.

Quick answers

Is CVE-2026-126234 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-126234 being exploited in the wild.
How severe is CVE-2026-126234?: High severity, with a CVSS score of 7.2, published 11 November 2026.
Which products and versions are affected?: Fortinet Fortianalyzer 8.0.0; Fortinet Fortianalyzer Cloud 8.0.0; Fortinet FortiManager 8.0.0; Fortinet FortiManager Cloud 8.0.0.
Is there a fix for CVE-2026-126234?: Yes: fixed in FortiAnalyzer 8.0.1 or above; FortiAnalyzer Cloud 8.0.1 or above; FortiManager 8.0.1 or above; FortiManager Cloud 8.0.1 or above. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-126234 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-126234?: Check whether you run Fortinet Fortianalyzer, Fortinet Fortianalyzer Cloud, Fortinet FortiManager or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: FortiAnalyzer 8.0.1 or above; FortiAnalyzer Cloud 8.0.1 or above; FortiManager 8.0.1 or above; FortiManager Cloud 8.0.1 or above

Technical details

A server-side template injection (SSTI) vulnerability in the API component allows authenticated users with restricted privileges to inject special characters and template syntax that bypass input validation. The vulnerability affects FortiAnalyzer and FortiManager version 8.0.0 (both on-premise and cloud variants); successful exploitation requires authentication but no elevated privileges, enabling privilege escalation or lateral movement within the management platform.

Affected products

Fortinet FortiAnalyzer 8.0.0
Fortinet FortiAnalyzer Cloud 8.0.0
Fortinet FortiManager 8.0.0
Fortinet FortiManager Cloud 8.0.0

Timeline

2026-11-10: disclosed

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-249

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