diff --git a/easystacks/pilot.nessi.no/2023.06/eessi-2023.06-eb-4.9.1-2023b.yml b/easystacks/pilot.nessi.no/2023.06/eessi-2023.06-eb-4.9.1-2023b.yml
new file mode 100644
index 0000000000..333331e51c
--- /dev/null
+++ b/easystacks/pilot.nessi.no/2023.06/eessi-2023.06-eb-4.9.1-2023b.yml
@@ -0,0 +1,7 @@
+easyconfigs:
+ # wget got ingested already
+ # - wget-1.21.4-GCCcore-13.2.0.eb
+ - py-cpuinfo-9.0.0-GCCcore-13.2.0.eb:
+     options:
+       # see https://github.com/easybuilders/easybuild-easyconfigs/pull/20125
+       from-commit: 6515b44cd84a20fe7876cb4bdaf3c0080e688566
diff --git a/scripts/gpu_support/nvidia/install_cuda_host_injections.sh b/scripts/gpu_support/nvidia/install_cuda_host_injections.sh
index a9310d817a..ed3132e2eb 100755
--- a/scripts/gpu_support/nvidia/install_cuda_host_injections.sh
+++ b/scripts/gpu_support/nvidia/install_cuda_host_injections.sh
@@ -186,6 +186,24 @@ else
     fatal_error "${error}"
   fi
 
+  # need to temporarily overwrite arch-specific SitePackage.lua or installation
+  # might fail in sanity check
+  mkdir -p ${cuda_install_parent}/.lmod
+  if [ -f ${cuda_install_parent}/.lmod/SitePackage.lua ]; then
+    mv ${cuda_install_parent}/.lmod/SitePackage.lua bkup-xyz-SitePackage.lua
+  fi
+  cat <<EOF > ${cuda_install_parent}/.lmod/SitePackage.lua
+require("strict")
+local hook = require("Hook")
+local open = io.open
+
+function arch_specific_load_hook(t)
+    LmodMessage("Ignoring ${EESSI_SOFTWARE_PATH}/.lmod/SitePackage.lua to allow for installing CUDA/12.1.1 under host_injections")
+end
+
+hook.register("load", arch_specific_load_hook)
+EOF
+
   # We need the --rebuild option, as the CUDA module may or may not be on the
   # `MODULEPATH` yet. Even if it is, we still want to redo this installation
   # since it will provide the symlinked targets for the parts of the CUDA
@@ -199,6 +217,15 @@ else
   # shellcheck disable=SC2086  # Intended splitting of extra_args
   eb --prefix="$tmpdir" ${extra_args} --accept-eula-for=CUDA --hooks="$tmpdir"/none.py --installpath="${cuda_install_parent}"/ "${cuda_easyconfig}"
   ret=$?
+
+  # remove temporary SitePackage.lua
+  rm ${cuda_install_parent}/.lmod/SitePackage.lua
+
+  # restore original arch-specific SitePackage.lua if any was present
+  if [ -f bkup-xyz-SitePackage.lua ]; then
+    mv bkup-xyz-SitePackage.lua ${cuda_install_parent}/.lmod/SitePackage.lua
+  fi
+
   if [ $ret -ne 0 ]; then
     eb_last_log=$(unset EB_VERBOSE; eb --last-log)
     cp -a ${eb_last_log} .