diff --git a/routers/api/packages/maven/api.go b/routers/api/packages/maven/api.go
index 167fe42b56..ec6b9cfb0e 100644
--- a/routers/api/packages/maven/api.go
+++ b/routers/api/packages/maven/api.go
@@ -8,7 +8,6 @@ import (
 	"strings"
 
 	packages_model "code.gitea.io/gitea/models/packages"
-	maven_module "code.gitea.io/gitea/modules/packages/maven"
 )
 
 // MetadataResponse https://maven.apache.org/ref/3.2.5/maven-repository-metadata/repository-metadata.html
@@ -22,7 +21,7 @@ type MetadataResponse struct {
 }
 
 // pds is expected to be sorted ascending by CreatedUnix
-func createMetadataResponse(pds []*packages_model.PackageDescriptor) *MetadataResponse {
+func createMetadataResponse(pds []*packages_model.PackageDescriptor, groupID, artifactID string) *MetadataResponse {
 	var release *packages_model.PackageDescriptor
 
 	versions := make([]string, 0, len(pds))
@@ -35,11 +34,9 @@ func createMetadataResponse(pds []*packages_model.PackageDescriptor) *MetadataRe
 
 	latest := pds[len(pds)-1]
 
-	metadata := latest.Metadata.(*maven_module.Metadata)
-
 	resp := &MetadataResponse{
-		GroupID:    metadata.GroupID,
-		ArtifactID: metadata.ArtifactID,
+		GroupID:    groupID,
+		ArtifactID: artifactID,
 		Latest:     latest.Version.Version,
 		Version:    versions,
 	}
diff --git a/routers/api/packages/maven/maven.go b/routers/api/packages/maven/maven.go
index 4d04d4d1e9..4f9ced25b4 100644
--- a/routers/api/packages/maven/maven.go
+++ b/routers/api/packages/maven/maven.go
@@ -84,20 +84,19 @@ func handlePackageFile(ctx *context.Context, serveContent bool) {
 }
 
 func serveMavenMetadata(ctx *context.Context, params parameters) {
-	// /com/foo/project/maven-metadata.xml[.md5/.sha1/.sha256/.sha512]
-
-	pvs, err := packages_model.GetVersionsByPackageName(ctx, ctx.Package.Owner.ID, packages_model.TypeMaven, params.toInternalPackageName())
-	if errors.Is(err, util.ErrNotExist) {
-		pvs, err = packages_model.GetVersionsByPackageName(ctx, ctx.Package.Owner.ID, packages_model.TypeMaven, params.toInternalPackageNameLegacy())
-	}
+	// path pattern: /com/foo/project/maven-metadata.xml[.md5/.sha1/.sha256/.sha512]
+	// in case there are legacy package names ("GroupID-ArtifactID") we need to check both, new packages always use ":" as separator("GroupID:ArtifactID")
+	pvsLegacy, err := packages_model.GetVersionsByPackageName(ctx, ctx.Package.Owner.ID, packages_model.TypeMaven, params.toInternalPackageNameLegacy())
 	if err != nil {
 		apiError(ctx, http.StatusInternalServerError, err)
 		return
 	}
-	if len(pvs) == 0 {
-		apiError(ctx, http.StatusNotFound, packages_model.ErrPackageNotExist)
+	pvs, err := packages_model.GetVersionsByPackageName(ctx, ctx.Package.Owner.ID, packages_model.TypeMaven, params.toInternalPackageName())
+	if err != nil {
+		apiError(ctx, http.StatusInternalServerError, err)
 		return
 	}
+	pvs = append(pvsLegacy, pvs...)
 
 	pds, err := packages_model.GetPackageDescriptors(ctx, pvs)
 	if err != nil {
@@ -110,7 +109,7 @@ func serveMavenMetadata(ctx *context.Context, params parameters) {
 		return pds[i].Version.CreatedUnix < pds[j].Version.CreatedUnix
 	})
 
-	xmlMetadata, err := xml.Marshal(createMetadataResponse(pds))
+	xmlMetadata, err := xml.Marshal(createMetadataResponse(pds, params.GroupID, params.ArtifactID))
 	if err != nil {
 		apiError(ctx, http.StatusInternalServerError, err)
 		return
diff --git a/tests/integration/api_packages_maven_test.go b/tests/integration/api_packages_maven_test.go
index 486a5af93e..408c8805c2 100644
--- a/tests/integration/api_packages_maven_test.go
+++ b/tests/integration/api_packages_maven_test.go
@@ -80,6 +80,7 @@ func TestPackageMaven(t *testing.T) {
 	t.Run("UploadLegacy", func(t *testing.T) {
 		defer tests.PrintCurrentTest(t)()
 
+		// try to upload a package with legacy package name (will be saved as "GroupID-ArtifactID")
 		legacyRootLink := "/api/packages/user2/maven/com/gitea/legacy-project"
 		req := NewRequestWithBody(t, "PUT", legacyRootLink+"/1.0.2/any-file-name?use_legacy_package_name=1", strings.NewReader("test-content")).AddBasicAuth(user.Name)
 		MakeRequest(t, req, http.StatusCreated)
@@ -97,6 +98,13 @@ func TestPackageMaven(t *testing.T) {
 		req = NewRequest(t, "GET", "/user2/-/packages/maven/com.gitea%3Alegacy-project/1.0.2")
 		MakeRequest(t, req, http.StatusNotFound)
 
+		// legacy package names should also be able to be listed
+		req = NewRequest(t, "GET", legacyRootLink+"/maven-metadata.xml").AddBasicAuth(user.Name)
+		resp := MakeRequest(t, req, http.StatusOK)
+		respBody := resp.Body.String()
+		assert.Contains(t, respBody, "<version>1.0.2</version>")
+
+		// then upload a package with correct package name (will be saved as "GroupID:ArtifactID")
 		req = NewRequestWithBody(t, "PUT", legacyRootLink+"/1.0.3/any-file-name", strings.NewReader("test-content")).AddBasicAuth(user.Name)
 		MakeRequest(t, req, http.StatusCreated)
 		_, err = packages.GetPackageByName(db.DefaultContext, user.ID, packages.TypeMaven, "com.gitea-legacy-project")
@@ -114,6 +122,12 @@ func TestPackageMaven(t *testing.T) {
 		req = NewRequest(t, "GET", "/user2/-/packages/maven/com.gitea%3Alegacy-project/1.0.2")
 		MakeRequest(t, req, http.StatusOK)
 
+		// now 2 packages should be listed
+		req = NewRequest(t, "GET", legacyRootLink+"/maven-metadata.xml").AddBasicAuth(user.Name)
+		resp = MakeRequest(t, req, http.StatusOK)
+		respBody = resp.Body.String()
+		assert.Contains(t, respBody, "<version>1.0.2</version>")
+		assert.Contains(t, respBody, "<version>1.0.3</version>")
 		require.NoError(t, packages.DeletePackageByID(db.DefaultContext, p.ID))
 	})