SB2026090974 - Open redirect in FortiSIEM
Published: September 9, 2026
Security Bulletin ID
SB2026090974
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Open redirect (CVE-ID: CVE-2026-84389)
CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
CVSSv4: 1.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote non-authenticated attacker to manipulate data.
The vulnerability exists due to url redirection to untrusted site ('open redirect') on FortiSIEM. An authenticated attacker can cause a redirection to any website via specially crafted HTTP requests.
Remediation
Install update from vendor's website.