Do white lists take priority over black lists?

I couldn't find it in official docs, but found elsewhere, so am seeking official confirmation. Imagine a scenario: I white list a subnet but want to blacklist one IP from it. So just putting that IP on a blacklist won't work? - So I'd need to include all the IPs of my subnet less the blacklisted IP explicitly in a while list?

whitelist rules have a higher priority than blacklist rules. You can find the processing order in our official docs:

https://docs.waf.chaitin.com/reference/articles/http-request-processing

In your case, if you whitelist a subnet and then blacklist one IP inside that subnet, the blacklist rule won't take effect because the whitelist has higher priority.

The recommended way is:

Allow rule: Source IP belongs to your subnet
AND
Source IP does not equal the IP you want to block

Deny rule: Source IP equals the IP you want to block

This will allow the subnet while blocking the specific IP.
2026-08-05_18.04.49.png
2026-08-05_18.05.11.png

Peter Larin

Updated 20 days ago

Thank you for explaining!

Sylvie

Updated 20 days ago

☺️