Main Vulnerability Database Vulnerabilities #VU165234

Improper Neutralization of Special Elements Used in a Template Engine in FortiAnalyzer and FortiManager - CVE-2026-126234

Published: November 11, 2026

Vulnerability identifier: #VU165234

CSH Severity: Low

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-126234

CWE-ID: CWE-1336

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote privileged user to execute arbitrary code.

The vulnerability exists due to improper neutralization of special elements used in a template engine. An authenticated attacker with restricted privileges can execute unauthorized code or commands via a specially crafted request.

Affected software

FortiAnalyzer
FortiManager

How to mitigate CVE-2026-126234

Install update from vendor's website.

FortiAnalyzer - update to 8.0.1
FortiManager - update to 8.0.1

External References

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

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