diff --git a/tests/e2e/v3_curl_test.go b/tests/e2e/v3_curl_test.go
index 74b5559f3f57..ab2b05b2efbf 100644
--- a/tests/e2e/v3_curl_test.go
+++ b/tests/e2e/v3_curl_test.go
@@ -74,6 +74,11 @@ func TestV3CurlAuth(t *testing.T) {
 		testCtl(t, testV3CurlAuth, withApiPrefix(p))
 	}
 }
+func TestV3CurlAuthWithoutOption(t *testing.T) {
+	for _, p := range apiPrefix {
+		testCtl(t, testV3CurlAuthWithoutOption, withApiPrefix(p))
+	}
+}
 func TestV3CurlAuthClientTLSCertAuth(t *testing.T) {
 	for _, p := range apiPrefix {
 		testCtl(t, testV3CurlAuth, withApiPrefix(p), withCfg(configClientTLSCertAuthWithNoCN))
@@ -274,6 +279,63 @@ func testV3CurlAuth(cx ctlCtx) {
 	}
 }
 
+func testV3CurlAuthWithoutOption(cx ctlCtx) {
+	p := cx.apiPrefix
+
+	// create root user
+	if err := cURLPost(cx.epc, cURLReq{endpoint: path.Join(p, "/auth/user/add"), value: "{\"name\":\"root\", \"password\":\"toor\"}", expected: "revision"}); err != nil {
+		cx.t.Fatalf("failed testV3CurlAuth add user with curl (%v)", err)
+	}
+
+	// create root role
+	if err := cURLPost(cx.epc, cURLReq{endpoint: path.Join(p, "/auth/role/add"), value: "{\"name\":\"root\"}", expected: "revision"}); err != nil {
+		cx.t.Fatalf("failed testV3CurlAuth create role with curl using prefix (%s) (%v)", p, err)
+	}
+
+	// grant root role
+	if err := cURLPost(cx.epc, cURLReq{endpoint: path.Join(p, "/auth/user/grant"), value: "{\"user\":\"root\", \"role\":\"root\"}", expected: "revision"}); err != nil {
+		cx.t.Fatalf("failed testV3CurlAuth grant role with curl using prefix (%s) (%v)", p, err)
+	}
+
+	// enable auth
+	if err := cURLPost(cx.epc, cURLReq{endpoint: path.Join(p, "/auth/enable"), value: string("{}"), expected: "revision"}); err != nil {
+		cx.t.Fatalf("failed testV3CurlAuth enable auth with curl using prefix (%s) (%v)", p, err)
+	}
+
+	// auth request
+	var (
+		authHeader string
+		cmdArgs    []string
+		lineFunc   = func(txt string) bool { return true }
+	)
+
+	cmdArgs = cURLPrefixArgs(cx.epc, "POST", cURLReq{endpoint: path.Join(p, "/auth/authenticate"), value: "{\"name\":\"root\", \"password\":\"toor\"}"})
+	proc, err := spawnCmd(cmdArgs)
+	testutil.AssertNil(cx.t, err)
+
+	cURLRes, err := proc.ExpectFunc(lineFunc)
+	testutil.AssertNil(cx.t, err)
+
+	authRes := make(map[string]interface{})
+	testutil.AssertNil(cx.t, json.Unmarshal([]byte(cURLRes), &authRes))
+
+	token, ok := authRes[rpctypes.TokenFieldNameGRPC].(string)
+	if !ok {
+		cx.t.Fatalf("failed invalid token in authenticate response with curl")
+	}
+
+	authHeader = "Authorization: " + token
+
+	// put "bar" into "foo"
+	putreq, err := json.Marshal(&pb.PutRequest{Key: []byte("foo"), Value: []byte("bar")})
+	testutil.AssertNil(cx.t, err)
+
+	// put with auth
+	if err = cURLPost(cx.epc, cURLReq{endpoint: path.Join(p, "/kv/put"), value: string(putreq), header: authHeader, expected: "revision"}); err != nil {
+		cx.t.Fatalf("failed testV3CurlAuth auth put with curl using prefix (%s) (%v)", p, err)
+	}
+}
+
 func TestV3CurlCampaignNoTLS(t *testing.T) {
 	for _, p := range apiPrefix {
 		testCtl(t, testV3CurlCampaign, withApiPrefix(p), withCfg(configNoTLS))