diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c3e7935160c..8a525528c03 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -107,7 +107,7 @@ jobs:
       - uses: ./.github/actions/checkout
         id: checkout
       # Get the vault version metadata
-      - uses: hashicorp/actions-set-product-version@v2
+      - uses: hashicorp/actions-set-product-version@2ec1b51402b3070bccf7ca95306afbd039e574ff # v2.0.1
         id: set-product-version
         with:
           checkout: false # don't override the reference we've checked out
@@ -352,7 +352,7 @@ jobs:
       - if: needs.setup.outputs.is-enterprise == 'true'
         id: secrets
         name: Fetch Vault Secrets
-        uses: hashicorp/vault-action@v3
+        uses: hashicorp/vault-action@4c06c5ccf5c0761b6029f56cfb1dcf5565918a3b # v3.4.0
         with:
           url: ${{ steps.vault-auth.outputs.addr }}
           caCertificate: ${{ steps.vault-auth.outputs.ca_certificate }}
@@ -421,7 +421,7 @@ jobs:
                 }
               ]
             }
-      - uses: hashicorp/actions-generate-metadata@v1
+      - uses: hashicorp/actions-generate-metadata@f1d852525201cb7bbbf031dd2e985fb4c22307fc # v1.1.3
         if: needs.artifacts.result == 'success' # create build metadata if we successfully created artifacts
         id: generate-metadata-file
         with:
diff --git a/.github/workflows/enos-lint.yml b/.github/workflows/enos-lint.yml
index 78a58067bfd..84d6e98809c 100644
--- a/.github/workflows/enos-lint.yml
+++ b/.github/workflows/enos-lint.yml
@@ -19,7 +19,7 @@ jobs:
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - id: set-product-version
-        uses: hashicorp/actions-set-product-version@v2
+        uses: hashicorp/actions-set-product-version@2ec1b51402b3070bccf7ca95306afbd039e574ff # v2.0.1
       - id: metadata
         run: |
           echo "version=${{ steps.set-product-version.outputs.product-version }}" >> "$GITHUB_OUTPUT"
@@ -43,10 +43,10 @@ jobs:
           cache: false # save cache space for vault builds: https://github.com/hashicorp/vault/pull/21764
           go-version-file: .go-version
       - uses: ./.github/actions/install-external-tools
-      - uses: hashicorp/setup-terraform@v3
+      - uses: hashicorp/setup-terraform@b9cd54a3c349d3f38e8881555d616ced269862dd # v3.1.2
         with:
           terraform_wrapper: false
-      - uses: hashicorp/action-setup-enos@v1
+      - uses: hashicorp/action-setup-enos@b9fa53484a1e8fdcc7b02a118bcf01d65b9414c9 # v1.37.0
         with:
           github-token: ${{ secrets.ELEVATED_GITHUB_TOKEN }}
       - name: Ensure shellcheck is available for linting
diff --git a/.github/workflows/enos-release-testing-oss.yml b/.github/workflows/enos-release-testing-oss.yml
index bd845374fe5..419b021b55e 100644
--- a/.github/workflows/enos-release-testing-oss.yml
+++ b/.github/workflows/enos-release-testing-oss.yml
@@ -69,4 +69,4 @@ jobs:
     needs: test
     steps:
       - name: Persist metadata
-        uses: hashicorp/actions-persist-metadata@v2
+        uses: hashicorp/actions-persist-metadata@e13fbbb09a867e1274210306a1fd53e1d1fda9c3 # v2.0.0
diff --git a/.github/workflows/test-ci-bootstrap.yml b/.github/workflows/test-ci-bootstrap.yml
index 5481e4f7281..94a60e5d2c1 100644
--- a/.github/workflows/test-ci-bootstrap.yml
+++ b/.github/workflows/test-ci-bootstrap.yml
@@ -31,7 +31,7 @@ jobs:
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Set up Terraform
-        uses: hashicorp/setup-terraform@v3
+        uses: hashicorp/setup-terraform@b9cd54a3c349d3f38e8881555d616ced269862dd # v3.1.2
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@e3dd6a429d7300a6a4c196c26e071d42e0343502 # v4.0.2
         with:
diff --git a/.github/workflows/test-enos-scenario-ui.yml b/.github/workflows/test-enos-scenario-ui.yml
index a606d1bc5bd..b7ba67e5cc8 100644
--- a/.github/workflows/test-enos-scenario-ui.yml
+++ b/.github/workflows/test-enos-scenario-ui.yml
@@ -76,7 +76,7 @@ jobs:
       - uses: ./.github/actions/set-up-go
         with:
           github-token: ${{ secrets.ELEVATED_GITHUB_TOKEN }}
-      - uses: hashicorp/action-setup-enos@v1
+      - uses: hashicorp/action-setup-enos@b9fa53484a1e8fdcc7b02a118bcf01d65b9414c9 # v1.37.0
         with:
           github-token: ${{ secrets.ELEVATED_GITHUB_TOKEN }}
       - name: Set Up Git
@@ -86,7 +86,7 @@ jobs:
         with:
           node-version-file: './ui/package.json'
       - name: Set Up Terraform
-        uses: hashicorp/setup-terraform@v3
+        uses: hashicorp/setup-terraform@b9cd54a3c349d3f38e8881555d616ced269862dd # v3.1.2
         with:
           cli_config_credentials_token: ${{ secrets.TF_API_TOKEN }}
           terraform_wrapper: false
diff --git a/.github/workflows/test-go.yml b/.github/workflows/test-go.yml
index ce9db9ee7f2..5270290e136 100644
--- a/.github/workflows/test-go.yml
+++ b/.github/workflows/test-go.yml
@@ -110,7 +110,7 @@ jobs:
       - name: Fetch Secrets
         id: secrets
         if: github.repository == 'hashicorp/vault-enterprise'
-        uses: hashicorp/vault-action@v3
+        uses: hashicorp/vault-action@4c06c5ccf5c0761b6029f56cfb1dcf5565918a3b # v3.4.0
         with:
           url: ${{ steps.vault-auth.outputs.addr }}
           caCertificate: ${{ steps.vault-auth.outputs.ca_certificate }}
@@ -292,7 +292,7 @@ jobs:
       - name: Fetch Secrets
         id: secrets
         if: github.repository == 'hashicorp/vault-enterprise'
-        uses: hashicorp/vault-action@v3
+        uses: hashicorp/vault-action@4c06c5ccf5c0761b6029f56cfb1dcf5565918a3b # v3.4.0
         with:
           url: ${{ steps.vault-auth.outputs.addr }}
           caCertificate: ${{ steps.vault-auth.outputs.ca_certificate }}
diff --git a/.github/workflows/test-run-enos-scenario-containers.yml b/.github/workflows/test-run-enos-scenario-containers.yml
index 6b6819003b9..2ad8cacd41a 100644
--- a/.github/workflows/test-run-enos-scenario-containers.yml
+++ b/.github/workflows/test-run-enos-scenario-containers.yml
@@ -43,7 +43,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           ref: ${{ inputs.vault-revision }}
-      - uses: hashicorp/action-setup-enos@v1
+      - uses: hashicorp/action-setup-enos@b9fa53484a1e8fdcc7b02a118bcf01d65b9414c9 # v1.37.0
         with:
           github-token: ${{ secrets.ELEVATED_GITHUB_TOKEN }}
       - id: metadata
@@ -79,12 +79,12 @@ jobs:
       GITHUB_TOKEN: ${{ secrets.ELEVATED_GITHUB_TOKEN }}
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: hashicorp/setup-terraform@v3
+      - uses: hashicorp/setup-terraform@b9cd54a3c349d3f38e8881555d616ced269862dd # v3.1.2
         with:
           # the Terraform wrapper will break Terraform execution in Enos because
           # it changes the output to text when we expect it to be JSON.
           terraform_wrapper: false
-      - uses: hashicorp/action-setup-enos@v1
+      - uses: hashicorp/action-setup-enos@b9fa53484a1e8fdcc7b02a118bcf01d65b9414c9 # v1.37.0
         with:
           github-token: ${{ secrets.ELEVATED_GITHUB_TOKEN }}
       - name: Download Docker Image
diff --git a/.github/workflows/test-run-enos-scenario-matrix.yml b/.github/workflows/test-run-enos-scenario-matrix.yml
index fd1b38ec2d3..ac28d979999 100644
--- a/.github/workflows/test-run-enos-scenario-matrix.yml
+++ b/.github/workflows/test-run-enos-scenario-matrix.yml
@@ -70,7 +70,7 @@ jobs:
           token: ${{ steps.vault-auth.outputs.token }}
           secrets: |
             kv/data/github/${{ github.repository }}/github-token token | ELEVATED_GITHUB_TOKEN;
-      - uses: hashicorp/action-setup-enos@v1
+      - uses: hashicorp/action-setup-enos@b9fa53484a1e8fdcc7b02a118bcf01d65b9414c9 # v1.37.0
         with:
           github-token: ${{ inputs.vault-edition == 'ce' && secrets.ELEVATED_GITHUB_TOKEN || steps.vault-secrets.outputs.ELEVATED_GITHUB_TOKEN }}
       - uses: ./.github/actions/create-dynamic-config
@@ -205,7 +205,7 @@ jobs:
             echo "ENOS_VAR_verify_aws_secrets_engine=false"
             echo "ENOS_VAR_verify_log_secrets=true"
           } | tee -a "$GITHUB_ENV"
-      - uses: hashicorp/setup-terraform@v3
+      - uses: hashicorp/setup-terraform@b9cd54a3c349d3f38e8881555d616ced269862dd # v3.1.2
         with:
           # the Terraform wrapper will break Terraform execution in Enos because
           # it changes the output to text when we expect it to be JSON.
@@ -218,7 +218,7 @@ jobs:
           role-to-assume: ${{ steps.secrets.outputs.aws-role-arn }}
           role-skip-session-tagging: true
           role-duration-seconds: 3600
-      - uses: hashicorp/action-setup-enos@v1
+      - uses: hashicorp/action-setup-enos@b9fa53484a1e8fdcc7b02a118bcf01d65b9414c9 # v1.37.0
         with:
           github-token: ${{ steps.secrets.outputs.github-token }}
       - uses: ./.github/actions/create-dynamic-config
@@ -291,28 +291,28 @@ jobs:
       # https://api.slack.com/apps/A05E31CH1LG/incoming-webhooks
       - if: ${{ always() && ! cancelled() }}
         name: Notify launch failed
-        uses: hashicorp/actions-slack-status@v2.0.1
+        uses: hashicorp/actions-slack-status@1a3f63b30bd476aee1f3bd6f9d8f2aacc4f14d81 # v2.0.1
         with:
           failure-message: "enos scenario launch ${{ matrix.scenario.id.filter}} failed. \nTriggering event: `${{ github.event_name }}` \nActor: `${{ github.actor }}`"
           status: ${{ steps.launch.outcome }}
           slack-webhook-url: ${{ steps.secrets.outputs.slack-webhook-url }}
       - if: ${{ always() && ! cancelled() }}
         name: Notify retry launch failed
-        uses: hashicorp/actions-slack-status@v2.0.1
+        uses: hashicorp/actions-slack-status@1a3f63b30bd476aee1f3bd6f9d8f2aacc4f14d81 # v2.0.1
         with:
           failure-message: "retry enos scenario launch ${{ matrix.scenario.id.filter}} failed. \nTriggering event: `${{ github.event_name }}` \nActor: `${{ github.actor }}`"
           status: ${{ steps.launch_retry.outcome }}
           slack-webhook-url: ${{ steps.secrets.outputs.slack-webhook-url }}
       - if: ${{ always() && ! cancelled() }}
         name: Notify destroy failed
-        uses: hashicorp/actions-slack-status@v2.0.1
+        uses: hashicorp/actions-slack-status@1a3f63b30bd476aee1f3bd6f9d8f2aacc4f14d81 # v2.0.1
         with:
           failure-message: "enos scenario destroy ${{ matrix.scenario.id.filter}} failed. \nTriggering event: `${{ github.event_name }}` \nActor: `${{ github.actor }}`"
           status: ${{ steps.destroy.outcome }}
           slack-webhook-url: ${{ steps.secrets.outputs.slack-webhook-url }}
       - if: ${{ always() && ! cancelled() }}
         name: Notify retry destroy failed
-        uses: hashicorp/actions-slack-status@v2.0.1
+        uses: hashicorp/actions-slack-status@1a3f63b30bd476aee1f3bd6f9d8f2aacc4f14d81 # v2.0.1
         with:
           failure-message: "retry enos scenario destroy ${{ matrix.scenario.id.filter}} failed. \nTriggering event: `${{ github.event_name }}` \nActor: `${{ github.actor }}`"
           status: ${{ steps.destroy_retry.outcome }}
diff --git a/.github/workflows/test-run-enos-scenario.yml b/.github/workflows/test-run-enos-scenario.yml
index 3a541704b38..992b966957f 100644
--- a/.github/workflows/test-run-enos-scenario.yml
+++ b/.github/workflows/test-run-enos-scenario.yml
@@ -70,7 +70,7 @@ jobs:
         with:
           node-version: 14
           cache-dependency-path: ui/yarn.lock
-      - uses: hashicorp/setup-terraform@v2
+      - uses: hashicorp/setup-terraform@633666f66e0061ca3b725c73b2ec20cd13a8fdd1 # v2.0.3
         with:
           # the Terraform wrapper will break Terraform execution in Enos because
           # it changes the output to text when we expect it to be JSON.
@@ -83,7 +83,7 @@ jobs:
           role-to-assume: ${{ secrets.AWS_ROLE_ARN_CI }}
           role-skip-session-tagging: true
           role-duration-seconds: 3600
-      - uses: hashicorp/action-setup-enos@v1
+      - uses: hashicorp/action-setup-enos@b9fa53484a1e8fdcc7b02a118bcf01d65b9414c9 # v1.37.0
         with:
           github-token: ${{ secrets.ELEVATED_GITHUB_TOKEN }}
       - name: Prepare scenario dependencies