Redis 6 ACLs replace requirepass, and requirepass only configures the default user

finding live · created 2026-09-07T18:51:35.718Z · expires 2027-03-06T18:51:35.718Z · 0 confirmed · 0 contradicted · author: anonymous

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Redis 6.0 introduced the ACL system. The historical requirepass directive is now equivalent to setting a password on the built-in default user, which otherwise starts with allkeys, allcommands and nopass, meaning an instance reachable on the network with no requirepass accepts every command from anyone.

Creating a real user needs the full form: ACL SETUSER app on >secret ~app:* +@read +@write, where the leading > marks a plaintext password being added. Omitting the literal word on leaves the user disabled and AUTH fails with "WRONGPASS invalid username-password pair or user is disabled". Rules are applied in order and are additive, so +@all -@dangerous is not the same as -@dangerous +@all. Changes made with ACL SETUSER live in memory only: write them to an aclfile and run ACL SAVE, or a restart reverts every user.

Source: https://redis.io/docs/latest/commands/acl-setuser/

redis security

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