diff --git a/.github/workflows/scan-secrets.yml b/.github/workflows/scan-secrets.yml
index 5737838741..ba5b3a27ee 100644
--- a/.github/workflows/scan-secrets.yml
+++ b/.github/workflows/scan-secrets.yml
@@ -162,10 +162,21 @@ jobs:
         # gitleaks entrypoint runs as gitleaks user (UID/GID 1000)
         run: |
           set -exuo pipefail
+          # TODO: Workaround podman < v4.3.0 support for `--userns=keep-id:uid=1000,gid=1000`.
+          declare -a workaround_args
+          workaround_args=(\
+            --user 1000:1000
+            --uidmap 0:1:1000
+            --uidmap 1000:0:1
+            --uidmap 1001:1001:64536
+            --gidmap 0:1:1000
+            --gidmap 1000:0:1
+            --gidmap 1001:1001:64536
+          )
           # Careful: Changes need coordination with contrib/cirrus/prebuild.sh
           podman run --rm \
             --security-opt=label=disable \
-            --userns=keep-id:uid=1000,gid=1000 \
+            "${workaround_args[@]}" \
             -v ${{ github.workspace }}/_default:/default:ro \
             -v ${{ github.workspace }}/_subject:/subject:ro \
             -v ${{ github.workspace }}/_report:/report:rw \
diff --git a/contrib/cirrus/prebuild.sh b/contrib/cirrus/prebuild.sh
index 1b303a61e5..9222918e86 100755
--- a/contrib/cirrus/prebuild.sh
+++ b/contrib/cirrus/prebuild.sh
@@ -77,12 +77,25 @@ if [[ "${DISTRO_NV}" == "$PRIOR_FEDORA_NAME" ]]; then
     # simply here to...
     msg "Checking GitLeaks functions with current CLI args, configuration, and baseline JSON"
 
+    # TODO: Workaround for GHA Environment, duplicate here for consistency.
+    # Replace with `--userns=keep-id:uid=1000,gid=1000` w/ newer podman in GHA environment.
+    declare -a workaround_args
+    workaround_args=(\
+      --user 1000:1000
+      --uidmap 0:1:1000
+      --uidmap 1000:0:1
+      --uidmap 1001:1001:64536
+      --gidmap 0:1:1000
+      --gidmap 1000:0:1
+      --gidmap 1001:1001:64536
+    )
+
     brdepth=$(get_env_key 'brdepth')
     glfqin=$(get_env_key 'glfqin')
     glargs=$(get_env_key 'glargs')
     showrun podman run --rm \
         --security-opt=label=disable \
-        --userns=keep-id:uid=1000,gid=1000 \
+        "${workaround_args[@]}" \
         -v $CIRRUS_WORKING_DIR:/subject:ro \
         -v $CIRRUS_WORKING_DIR:/default:ro \
         --tmpfs /report:rw,size=256k,mode=1777 \