diff --git a/cmake/QtPublicSbomGenerationHelpers.cmake b/cmake/QtPublicSbomGenerationHelpers.cmake
index b78b30593f5..e9460eb277b 100644
--- a/cmake/QtPublicSbomGenerationHelpers.cmake
+++ b/cmake/QtPublicSbomGenerationHelpers.cmake
@@ -78,6 +78,8 @@ function(_qt_internal_sbom_begin_project_generate)
 
     qt_internal_sbom_set_default_option_value(PROJECT "${PROJECT_NAME}")
 
+    _qt_internal_sbom_get_git_version_vars()
+
     set(default_sbom_file_name
         "${arg_PROJECT}/${arg_PROJECT}-sbom-${QT_SBOM_GIT_VERSION_PATH}.spdx")
     set(default_install_sbom_path
diff --git a/cmake/QtPublicSbomHelpers.cmake b/cmake/QtPublicSbomHelpers.cmake
index 82685935eac..025beb58007 100644
--- a/cmake/QtPublicSbomHelpers.cmake
+++ b/cmake/QtPublicSbomHelpers.cmake
@@ -115,12 +115,11 @@ function(_qt_internal_sbom_begin_project)
         endif()
     endif()
 
-    # Set the variables in the outer scope, so they can be accessed by the generation functions
-    # in QtPublicSbomGenerationHelpers.cmake
-    set(QT_SBOM_GIT_VERSION "${QT_SBOM_GIT_VERSION}" PARENT_SCOPE)
-    set(QT_SBOM_GIT_VERSION_PATH "${QT_SBOM_GIT_VERSION_PATH}" PARENT_SCOPE)
-    set(QT_SBOM_GIT_HASH "${QT_SBOM_GIT_HASH}" PARENT_SCOPE)
-    set(QT_SBOM_GIT_HASH_SHORT "${QT_SBOM_GIT_HASH_SHORT}" PARENT_SCOPE)
+    # Save the variables in a global property to later query them in other functions.
+    set_property(GLOBAL PROPERTY QT_SBOM_GIT_VERSION "${QT_SBOM_GIT_VERSION}")
+    set_property(GLOBAL PROPERTY QT_SBOM_GIT_VERSION_PATH "${QT_SBOM_GIT_VERSION_PATH}")
+    set_property(GLOBAL PROPERTY QT_SBOM_GIT_HASH "${QT_SBOM_GIT_HASH}")
+    set_property(GLOBAL PROPERTY QT_SBOM_GIT_HASH_SHORT "${QT_SBOM_GIT_HASH_SHORT}")
 
     if(arg_DOCUMENT_NAMESPACE)
         set(repo_spdx_namespace "${arg_DOCUMENT_NAMESPACE}")
@@ -1659,12 +1658,27 @@ endfunction()
 function(_qt_internal_sbom_get_qt_repo_source_download_location out_var)
     _qt_internal_sbom_get_root_project_name_lower_case(repo_project_name_lowercase)
     set(download_location "git://code.qt.io/qt/${repo_project_name_lowercase}.git")
+
+    _qt_internal_sbom_get_git_version_vars()
     if(QT_SBOM_GIT_HASH)
         string(APPEND download_location "@${QT_SBOM_GIT_HASH}")
     endif()
     set(${out_var} "${download_location}" PARENT_SCOPE)
 endfunction()
 
+# Queries the current project git version variables and sets them in the parent scope.
+function(_qt_internal_sbom_get_git_version_vars)
+    get_cmake_property(QT_SBOM_GIT_VERSION QT_SBOM_GIT_VERSION)
+    get_cmake_property(QT_SBOM_GIT_VERSION_PATH QT_SBOM_GIT_VERSION_PATH)
+    get_cmake_property(QT_SBOM_GIT_HASH QT_SBOM_GIT_HASH)
+    get_cmake_property(QT_SBOM_GIT_HASH_SHORT QT_SBOM_GIT_HASH_SHORT)
+
+    set(QT_SBOM_GIT_VERSION "${QT_SBOM_GIT_VERSION}" PARENT_SCOPE)
+    set(QT_SBOM_GIT_VERSION_PATH "${QT_SBOM_GIT_VERSION_PATH}" PARENT_SCOPE)
+    set(QT_SBOM_GIT_HASH "${QT_SBOM_GIT_HASH}" PARENT_SCOPE)
+    set(QT_SBOM_GIT_HASH_SHORT "${QT_SBOM_GIT_HASH_SHORT}" PARENT_SCOPE)
+endfunction()
+
 # Returns the configure line used to configure the current repo or top-level build, by reading
 # the config.opt file that the configure script writes out.
 # Returns an empty string if configure was not called, but CMake was called directly.
diff --git a/cmake/QtPublicSbomPurlHelpers.cmake b/cmake/QtPublicSbomPurlHelpers.cmake
index f8ea421b73c..dc5efc5361f 100644
--- a/cmake/QtPublicSbomPurlHelpers.cmake
+++ b/cmake/QtPublicSbomPurlHelpers.cmake
@@ -98,6 +98,8 @@ function(_qt_internal_sbom_handle_purl_values target)
     # List of purl variants to process.
     set(purl_variants "")
 
+    _qt_internal_sbom_get_git_version_vars()
+
     set(third_party_types
         QT_THIRD_PARTY_MODULE
         QT_THIRD_PARTY_SOURCES
diff --git a/cmake/QtSbomHelpers.cmake b/cmake/QtSbomHelpers.cmake
index dc5b476f766..7ff1baf3598 100644
--- a/cmake/QtSbomHelpers.cmake
+++ b/cmake/QtSbomHelpers.cmake
@@ -101,3 +101,7 @@ function(qt_internal_sbom_get_external_document_ref_spdx_id project_name out_var
 
     set(${out_var} "${result}" PARENT_SCOPE)
 endfunction()
+
+macro(qt_internal_sbom_get_git_version_vars)
+    _qt_internal_sbom_get_git_version_vars()
+endmacro()