diff --git a/bitnami/kong/3/debian-12/Dockerfile b/bitnami/kong/3/debian-12/Dockerfile
index 2fd3e8ea1ccd..6a17aec146fa 100644
--- a/bitnami/kong/3/debian-12/Dockerfile
+++ b/bitnami/kong/3/debian-12/Dockerfile
@@ -7,7 +7,7 @@ ARG DOWNLOADS_URL="downloads.bitnami.com/files/stacksmith"
 ARG TARGETARCH
 
 LABEL org.opencontainers.image.base.name="docker.io/bitnami/minideb:bookworm" \
-      org.opencontainers.image.created="2026-05-23T08:44:20Z" \
+      org.opencontainers.image.created="2026-05-27T09:02:47Z" \
       org.opencontainers.image.description="Application packaged by Broadcom, Inc." \
       org.opencontainers.image.documentation="https://github.com/bitnami/containers/tree/main/bitnami/kong/README.md" \
       org.opencontainers.image.source="https://github.com/bitnami/containers/tree/main/bitnami/kong" \
@@ -28,17 +28,17 @@ RUN --mount=type=secret,id=downloads_url,env=SECRET_DOWNLOADS_URL \
     DOWNLOADS_URL=${SECRET_DOWNLOADS_URL:-${DOWNLOADS_URL}} ; \
     mkdir -p /tmp/bitnami/pkg/cache/ ; cd /tmp/bitnami/pkg/cache/ || exit 1 ; \
     COMPONENTS=( \
-      "kong-3.9.1-20-linux-${OS_ARCH}-debian-12" \
+      "kong-3.9.1-21-linux-${OS_ARCH}-debian-12" \
     ) ; \
     for COMPONENT in "${COMPONENTS[@]}"; do \
       if [ ! -f "${COMPONENT}.tar.gz" ]; then \
         curl -SsLf "https://${DOWNLOADS_URL}/${COMPONENT}.tar.gz" -O ; \
-        curl -SsLf "https://${DOWNLOADS_URL}/${COMPONENT}.tar.gz.sha256" -O ; \
       fi ; \
-      sha256sum -c "${COMPONENT}.tar.gz.sha256" ; \
+      sha256sum -c "/opt/bitnami/checksums/${COMPONENT}.tar.gz.sha256" ; \
       tar -zxf "${COMPONENT}.tar.gz" -C /opt/bitnami --strip-components=2 --no-same-owner ; \
-      rm -rf "${COMPONENT}".tar.gz{,.sha256} ; \
-    done
+      rm -rf "${COMPONENT}".tar.gz ; \
+    done ; \
+    rm -rf /opt/bitnami/checksums ;
 RUN apt-get update && apt-get upgrade -y && \
     apt-get clean && rm -rf /var/lib/apt/lists /var/cache/apt/archives
 RUN chmod g+rwX /opt/bitnami
@@ -48,7 +48,7 @@ COPY rootfs /
 RUN /opt/bitnami/scripts/kong/postunpack.sh
 ENV APP_VERSION="3.9.1" \
     BITNAMI_APP_NAME="kong" \
-    IMAGE_REVISION="44" \
+    IMAGE_REVISION="45" \
     PATH="/opt/bitnami/kong/bin:/opt/bitnami/kong/openresty/bin:/opt/bitnami/kong/openresty/luajit/bin:/opt/bitnami/kong/openresty/nginx/sbin:/opt/bitnami/kong/luarocks/bin:$PATH"
 
 EXPOSE 8000 8001 8443 8444
diff --git a/bitnami/kong/3/debian-12/prebuildfs/opt/bitnami/checksums/kong-3.9.1-21-linux-amd64-debian-12.tar.gz.sha256 b/bitnami/kong/3/debian-12/prebuildfs/opt/bitnami/checksums/kong-3.9.1-21-linux-amd64-debian-12.tar.gz.sha256
new file mode 100644
index 000000000000..597a341e04dd
--- /dev/null
+++ b/bitnami/kong/3/debian-12/prebuildfs/opt/bitnami/checksums/kong-3.9.1-21-linux-amd64-debian-12.tar.gz.sha256
@@ -0,0 +1 @@
+db8166f5199c0eb748e132dbfea1a86f37987c6fdc81d745a6c0c0b3530adf88  kong-3.9.1-21-linux-amd64-debian-12.tar.gz
diff --git a/bitnami/kong/3/debian-12/prebuildfs/opt/bitnami/checksums/kong-3.9.1-21-linux-arm64-debian-12.tar.gz.sha256 b/bitnami/kong/3/debian-12/prebuildfs/opt/bitnami/checksums/kong-3.9.1-21-linux-arm64-debian-12.tar.gz.sha256
new file mode 100644
index 000000000000..ab28bff9da9b
--- /dev/null
+++ b/bitnami/kong/3/debian-12/prebuildfs/opt/bitnami/checksums/kong-3.9.1-21-linux-arm64-debian-12.tar.gz.sha256
@@ -0,0 +1 @@
+6bfffbfe0a91ec67c09b7615095666e9b8ace8c2f2274a1c51df2d67a6ad9ebf  kong-3.9.1-21-linux-arm64-debian-12.tar.gz
diff --git a/bitnami/kong/3/debian-12/prebuildfs/opt/bitnami/scripts/libfile.sh b/bitnami/kong/3/debian-12/prebuildfs/opt/bitnami/scripts/libfile.sh
index 1c69e0e48a5d..335c1c7c9ef7 100644
--- a/bitnami/kong/3/debian-12/prebuildfs/opt/bitnami/scripts/libfile.sh
+++ b/bitnami/kong/3/debian-12/prebuildfs/opt/bitnami/scripts/libfile.sh
@@ -139,3 +139,40 @@ wait_for_log_entry() {
         return 1
     fi
 }
+
+########################
+# Creates a secure temporary file containing the provided secret
+# Arguments:
+#   $1 - secret to write to the temporary file
+# Returns:
+#   String
+#########################
+credential_to_temp_file() {
+    local secret="$1"
+    local tmp_file
+
+    # Use mktemp with a specific prefix for easier debugging if something lingers
+    if ! tmp_file=$(mktemp "${TMPDIR:-/tmp}/at.cred.XXXXXXXX"); then
+        echo "Error: Failed to create temp file" >&2
+        return 1
+    fi
+
+    # Restrict permissions before writing the secret
+    chmod 0600 "$tmp_file"
+    # Write secret and ensure it's flushed to disk
+    printf "%s" "$secret" > "$tmp_file"
+    # Output the filename so the caller can capture it
+    echo "$tmp_file"
+}
+
+########################
+# Cleans up temporary files created by credential_to_temp_file
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+cleanup_credentials() {
+    debug "Cleaning up temporary files containing credentials"
+    rm -rf "${TMPDIR:-/tmp}"/at.cred.*
+}