Issue
The websites proxied via Cloudflare were not opening, returning 521 errors instead.
After disabling the imunify360-webshield, the websites started operating normally.
Environment
- Imunify360
- cPanel + Apache
- WebShield
- Cloudflare
Solution
imunify360-agent config update '{"WEBSHIELD": {"enable": false}}'to disable firewall completely.
UPD 04-16-2026:
These packages that are currently in rollout slot for 5% address the issue:
imunify-antivirus-8.7.3 imunify360-firewall-8.13.1 imunify360-core-8.9.2
Cause
Bugreport has been filled as DEF-41171.
The bug is that on cPanel + Apache redirects onto WebShield are created for all ports, and not only cPanel/WHM ports as it should be, so the requests go to nowhere because the WebShield isn't listening to those ports.
Comments
0 comments
Please sign in to leave a comment.