Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.4.4, manager/router/router.go registers GET /api/v1/oauth and GET /api/v1/oauth/:id without jwt.MiddlewareFunc() or RBAC(), while manager/handlers/oauth.go returns models.Oauth records and manager/models/oauth.go exposes Oauth.ClientSecret as client_secret in JSON. When an administrator has configured a GitHub or Google OAuth provider, an unauthenticated network client can reach GetOauth or GetOauths, load the stored models.Oauth record, and obtain the provider's client secret, client identifier, and redirect URL. The earlier GHSA-j8hf-cp34-g4j7 remediation protected the /jobs group only and did not protect these OAuth GET handlers. Disclosure of client_secret can enable abuse of the configured identity-provider integration, subject to the provider's redirect URI restrictions. This issue is fixed in 2.4.4.

Affected: Go: d7y.io/dragonfly/v2

### Summary

The Dragonfly Manager exposes `GET /api/v1/oauth` and `GET /api/v1/oauth/:id` to unauthenticated clients. The response body deserializes the entire `manager/models.Oauth` struct, which includes the `client_secret` field. Any network-reachable attacker can read the OAuth client secrets configured for `github` or `google` providers, defeating the confidentiality guarantee of those secrets and enabling subsequent abuse against the connected identity providers.

### Affected versions

`github.com/dragonflyoss/dragonfly` `<= v2.4.3` (and current `main` at commit `46a8f1e`). The vulnerable wiring is present back to the introduction of OAuth GET handlers and was not addressed by GHSA-j8hf-cp34-g4j7 / CVE-2026-24124, whose remediation only added `jwt + rbac` middleware to the `/jobs` group.

### Privilege required

Unauthenticated. The only precondition is that an administrator has registered at least one OAuth provider via `POST /api/v1/oauth` (a one-time setup for tenants that enable GitHub / Google sign-in).

### Vulnerable code

[`manager/router/router.go:134-140`](https://github.com/dragonflyoss/dragonfly/blob/e1491bf6134fe307b09e82e11fa94b0587dcd323/manager/router/router.go#L134-L140) (v2.4.3) — the `/oauth` group registration:

```go // Oauth. oa := apiv1.Group("/oauth") oa.POST("", jwt.MiddlewareFunc(), rbac, h.CreateOauth) oa.DELETE(":id", jwt.MiddlewareFunc(), rbac, h.DestroyOauth) oa.PATCH(":id", jwt.MiddlewareFunc(), rbac, h.UpdateOauth) oa.GET(":id", h.GetO…