Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, GET /api/v4/user/search calls SearchActive without adding a StatusActive predicate and serializes matches at RedactLevelUser, allowing any logged-in user to enumerate email addresses and profile metadata for inactive or banned accounts. The service calls userClient.SearchActive, but despite its name that method filters only by email/nickname keyword and never adds a StatusActive predicate — while the sibling lookups GetActiveByID and GetActiveByDavAccount, defined a few lines above it, do. Search hits are serialized at RedactLevelUser, which includes the email address. This issue is fixed in version 4.17.0.

Affected: Go: github.com/cloudreve/Cloudreve/v4, Go: github.com/cloudreve/Cloudreve/v3

## Summary `GET /api/v4/user/search` is available to any logged-in user. The service calls `userClient.SearchActive`, but despite its name that method filters only by email/nickname keyword and **never adds a `StatusActive` predicate** — while the sibling lookups `GetActiveByID` and `GetActiveByDavAccount`, defined a few lines above it, do. Search hits are serialized at `RedactLevelUser`, which includes the email address. A normal logged-in user can therefore enumerate and retrieve the email (plus nickname, avatar, creation time, redacted group, profile share-visibility) of **inactive and banned** accounts that an active-user directory is supposed to suppress. No global status interceptor compensates — the only User query interceptor is soft-delete, and inactive/banned rows are not soft-deleted.

### Details ## Root cause (verified at `26b6b10`) **1. Route — logged-in + `UserInfo.Read` scope** (`routers/router.go`): ```go user := v4.Group("user") // protected user group (login required) user.GET("search", middleware.RequiredScopes(types.ScopeUserInfoRead), controllers.FromQuery[usersvc.SearchUserService](...), controllers.UserSearch) ``` The `RequiredScopes` check applies to scoped OAuth tokens; plain session requests are not gated by it — so any logged-in user reaches the search. **2. Service — 2-char keyword to `SearchActive`** (`service/user/info.go`): ```go type SearchUserService struct { Keyword string `form:"keyword" binding:"required,min=2"`…