FortiSASE experienced a major incident on January 30, 2026 affecting FortiSASE Portal, lasting 13h 36m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Jan 30, 2026, 08:00 AM UTC
We are investigating reports of intermittent inability to load FortiSASE GUI ( and reference FortiSASE Operations ticket #432035.
- monitoring Jan 30, 2026, 09:07 AM UTC
The issue has been identified and a workaround has been implemented to restore portal access in affected regions. We are currently monitoring results.
- monitoring Jan 30, 2026, 11:09 AM UTC
The initial workaround resolved the issue for the majority of requests. However, a subset of users continued to experience SSO authentication failures when requests passed through the WAF. A secondary workaround has been applied to address this behavior. Root cause analysis is ongoing with our WAF Dev/QA teams. Preliminary findings indicate an issue with HTTP/2 traffic processing on a small percentage of EMEA nodes.
- resolved Jan 30, 2026, 09:37 PM UTC
We have deployed a hotfix to the WAF that addresses the root cause of this incident. All previously implemented workarounds have been reverted, and the environment has been confirmed stable. This incident is now fully resolved.