diff --git a/changelog/unreleased/fix-share-jail.md b/changelog/unreleased/fix-share-jail.md
new file mode 100644
index 00000000000..ea49cdc46ee
--- /dev/null
+++ b/changelog/unreleased/fix-share-jail.md
@@ -0,0 +1,5 @@
+Bugfix: fix share jail
+
+Make matching mountpoints deterministic by comparing whole path segments of mountpoints
+
+https://github.com/cs3org/reva/pull/4134
diff --git a/internal/grpc/services/sharesstorageprovider/sharesstorageprovider.go b/internal/grpc/services/sharesstorageprovider/sharesstorageprovider.go
index 4b1a12f8baf..dd71e0c4f5a 100644
--- a/internal/grpc/services/sharesstorageprovider/sharesstorageprovider.go
+++ b/internal/grpc/services/sharesstorageprovider/sharesstorageprovider.go
@@ -1059,7 +1059,8 @@ func (s *service) resolveAcceptedShare(ctx context.Context, ref *provider.Refere
 			if receivedShare.State != collaboration.ShareState_SHARE_STATE_ACCEPTED {
 				continue
 			}
-			if strings.HasPrefix(strings.TrimPrefix(ref.Path, "./"), receivedShare.MountPoint.Path) {
+			//if strings.HasPrefix(strings.TrimPrefix(ref.Path, "./"), receivedShare.MountPoint.Path) {
+			if isMountPointForPath(receivedShare.MountPoint.Path, ref.Path) {
 				return receivedShare, lsRes.Status, nil
 			}
 		}
@@ -1069,6 +1070,17 @@ func (s *service) resolveAcceptedShare(ctx context.Context, ref *provider.Refere
 	return nil, status.NewNotFound(ctx, "sharesstorageprovider: not found "+ref.String()), nil
 }
 
+func isMountPointForPath(mountpoint, path string) bool {
+	requiredSegments := strings.Split(strings.TrimPrefix(mountpoint, "./"), "/")
+	pathSegments := strings.Split(strings.TrimPrefix(path, "./"), "/")
+	for i := range requiredSegments {
+		if pathSegments[i] != requiredSegments[i] {
+			return false
+		}
+	}
+	return true
+}
+
 func (s *service) rejectReceivedShare(ctx context.Context, receivedShare *collaboration.ReceivedShare) error {
 	receivedShare.State = collaboration.ShareState_SHARE_STATE_REJECTED
 	receivedShare.MountPoint = nil
diff --git a/internal/grpc/services/sharesstorageprovider/sharesstorageprovider_test.go b/internal/grpc/services/sharesstorageprovider/sharesstorageprovider_test.go
index eccb91b47f9..98db8349075 100644
--- a/internal/grpc/services/sharesstorageprovider/sharesstorageprovider_test.go
+++ b/internal/grpc/services/sharesstorageprovider/sharesstorageprovider_test.go
@@ -126,7 +126,7 @@ var _ = Describe("Sharesstorageprovider", func() {
 				},
 			},
 			MountPoint: &sprovider.Reference{
-				Path: "",
+				Path: "share1-shareddir",
 			},
 		}
 
@@ -188,7 +188,7 @@ var _ = Describe("Sharesstorageprovider", func() {
 		gatewayClient.On("Stat", mock.Anything, mock.AnythingOfType("*providerv1beta1.StatRequest")).Return(
 			func(_ context.Context, req *sprovider.StatRequest, _ ...grpc.CallOption) *sprovider.StatResponse {
 				switch req.Ref.GetPath() {
-				case "./share1-shareddir":
+				case "./share1-shareddir", "./share1-shareddir (1)":
 					return &sprovider.StatResponse{
 						Status: status.NewOK(context.Background()),
 						Info: &sprovider.ResourceInfo{
@@ -435,6 +435,21 @@ var _ = Describe("Sharesstorageprovider", func() {
 				Expect(res.Info.Size).To(Equal(uint64(100)))
 			})
 
+			It("stats the correct share in the share jail", func() {
+				BaseShare.MountPoint.Path = "share1-shareddir"
+				BaseShareTwo.MountPoint.Path = "share1-shareddir (1)"
+				statReq := ShareJailStatRequest
+				statReq.Ref.Path = "./share1-shareddir (1)"
+				res, err := s.Stat(ctx, statReq)
+				Expect(err).ToNot(HaveOccurred())
+				Expect(res).ToNot(BeNil())
+				Expect(res.Status.Code).To(Equal(rpc.Code_CODE_OK))
+				Expect(res.Info).ToNot(BeNil())
+				Expect(res.Info.Type).To(Equal(sprovider.ResourceType_RESOURCE_TYPE_CONTAINER))
+				Expect(res.Info.Path).To(Equal("share1-shareddir"))
+				Expect(res.Info.Size).To(Equal(uint64(100)))
+			})
+
 			It("stats a shares folder", func() {
 				statReq := BaseStatRequest
 				res, err := s.Stat(ctx, statReq)