diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d0818a5..14758a4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,6 @@
 name: CI
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build:
@@ -15,6 +15,7 @@ jobs:
         uses: actions/setup-go@v6.0.0
         with:
           go-version-file: go.mod
+          cache: true
 
       - name: Build
         run: make
diff --git a/.github/workflows/vulnerability.yml b/.github/workflows/vulnerability.yml
new file mode 100644
index 0000000..9c81783
--- /dev/null
+++ b/.github/workflows/vulnerability.yml
@@ -0,0 +1,19 @@
+name: Vulnerability Check
+
+on: [push, pull_request]
+
+jobs:
+  vulncheck:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5.0.0
+
+      - name: Install Go
+        uses: actions/setup-go@v6.0.0
+        with:
+          go-version-file: go.mod
+          cache: true
+
+      - name: Check for vulnerabilities
+        run: go run golang.org/x/vuln/cmd/govulncheck@latest ./...
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 684eab1..909b326 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,20 @@
 All notable changes to this project will be documented in this file.
 See updating [Changelog example here](https://keepachangelog.com/en/1.0.0/).
 
+## Unreleased
+
+### Added:
+* Added `AWSAccountID` field to `CloudDetail` struct in subscriptions model for AWS account identification
+* Added `govulncheck` to CI pipeline for automated vulnerability detection
+* New `.github/workflows/vulnerability.yml` workflow for parallel vulnerability checking
+* Enabled Go module caching in GitHub Actions for improved build performance
+
+### Updated:
+* Updated Go toolchain to 1.25.3 to address stdlib vulnerabilities (GO-2025-4007, GO-2025-3751, GO-2025-3750, GO-2025-3749, GO-2025-3563)
+
+### Tests:
+* Added AWS account ID to subscription test fixtures (`TestSubscription_List`, `TestSubscription_Get`, `TestSubscription_Get_PublicEndpointAccess`)
+
 ## 0.40.0 (31st October 2025)
 
 ### Added:
diff --git a/go.mod b/go.mod
index 27de6d7..4ed36f9 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module github.com/RedisLabs/rediscloud-go-api
 
 go 1.24.0
 
-toolchain go1.24.1
+toolchain go1.25.3
 
 require (
 	github.com/avast/retry-go/v4 v4.7.0
diff --git a/service/subscriptions/model.go b/service/subscriptions/model.go
index ce1d98a..f5e172e 100644
--- a/service/subscriptions/model.go
+++ b/service/subscriptions/model.go
@@ -153,6 +153,7 @@ func (o Subscription) String() string {
 type CloudDetail struct {
 	Provider       *string   `json:"provider,omitempty"`
 	CloudAccountID *int      `json:"cloudAccountId,omitempty"`
+	AWSAccountID   *string   `json:"awsAccountId,omitempty"`
 	TotalSizeInGB  *float64  `json:"totalSizeInGb,omitempty"`
 	Regions        []*Region `json:"regions,omitempty"`
 }
diff --git a/subscription_test.go b/subscription_test.go
index 2816f79..e1c6697 100644
--- a/subscription_test.go
+++ b/subscription_test.go
@@ -425,6 +425,7 @@ func TestSubscription_List(t *testing.T) {
         {
           "provider": "AWS",
           "cloudAccountId": 2,
+          "awsAccountId": "123456789012",
           "totalSizeInGb": 0.0062,
           "regions": [
             {
@@ -509,6 +510,7 @@ func TestSubscription_List(t *testing.T) {
 				{
 					Provider:       redis.String("AWS"),
 					CloudAccountID: redis.Int(2),
+					AWSAccountID:   redis.String("123456789012"),
 					TotalSizeInGB:  redis.Float64(0.0062),
 					Regions: []*subscriptions.Region{
 						{
@@ -579,6 +581,7 @@ func TestSubscription_Get(t *testing.T) {
     {
       "provider": "AWS",
       "cloudAccountId": 3,
+      "awsAccountId": "987654321098",
       "totalSizeInGb": 4,
       "regions": [
         {
@@ -624,6 +627,7 @@ func TestSubscription_Get(t *testing.T) {
 			{
 				Provider:       redis.String("AWS"),
 				CloudAccountID: redis.Int(3),
+				AWSAccountID:   redis.String("987654321098"),
 				TotalSizeInGB:  redis.Float64(4),
 				Regions: []*subscriptions.Region{
 					{
@@ -658,6 +662,7 @@ func TestSubscription_Get_PublicEndpointAccess(t *testing.T) {
     {
       "provider": "AWS",
       "cloudAccountId": 3,
+      "awsAccountId": "111222333444",
       "totalSizeInGb": 4,
       "regions": [
         {
@@ -704,6 +709,7 @@ func TestSubscription_Get_PublicEndpointAccess(t *testing.T) {
 			{
 				Provider:       redis.String("AWS"),
 				CloudAccountID: redis.Int(3),
+				AWSAccountID:   redis.String("111222333444"),
 				TotalSizeInGB:  redis.Float64(4),
 				Regions: []*subscriptions.Region{
 					{