diff --git a/.github/actions/setup_environment/action.yaml b/.github/actions/setup_environment/action.yaml
index 106e3c6..0a04845 100644
--- a/.github/actions/setup_environment/action.yaml
+++ b/.github/actions/setup_environment/action.yaml
@@ -6,6 +6,10 @@ inputs:
     description: "Task version"
     required: true
     default: "3.33.1"
+  trivy-version:
+    description: "Trivy version"
+    required: true
+    default: "v0.57.1"
   python-version:
     description: "Python version"
     required: true
@@ -23,6 +27,11 @@ runs:
       with:
         version: ${{ inputs.task-version }}
 
+    - name: Install Trivy
+      uses: aquasecurity/setup-trivy@v0.2.2
+      with:
+        version: ${{ inputs.trivy-version }}
+
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
diff --git a/.github/workflows/check-pr.yaml b/.github/workflows/check-pr.yaml
index 7474af2..503bd0e 100644
--- a/.github/workflows/check-pr.yaml
+++ b/.github/workflows/check-pr.yaml
@@ -13,6 +13,7 @@ jobs:
 
     permissions:
       contents: read
+      pull-requests: write
 
     steps:
       - name: Checkout repository
@@ -33,3 +34,27 @@ jobs:
         working-directory: backend
         run: |
           task test-container
+
+      - name: Build backend image
+        working-directory: backend
+        run: |
+          task image-build
+
+      - name: Scan backend image
+        id: scan
+        uses: ovsds/run-with-output-action@v1
+        continue-on-error: true
+        with:
+          run: task backend:image-scan
+
+      - name: Report vulnerabilities
+        uses: ovsds/create-or-update-unique-comment-action@v1
+        with:
+          issue-number: ${{ github.event.number }}
+          body: |
+            ## Vulnerabilities found
+            ```
+            ${{ steps.scan.outputs.stdout }}
+            ```
+          unique-body-includes: "## Vulnerabilities found"
+          delete: ${{ steps.scan.outputs.exit_code == 0 }}
diff --git a/.github/workflows/release-scan.yaml b/.github/workflows/release-scan.yaml
new file mode 100644
index 0000000..611f411
--- /dev/null
+++ b/.github/workflows/release-scan.yaml
@@ -0,0 +1,47 @@
+name: 🔒 Security Scan
+
+on:
+  schedule:
+    # Every Sunday at 00:00 UTC
+    - cron: 0 0 * * 0
+  workflow_dispatch:
+
+jobs:
+  scan:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Environment
+        uses: ./.github/actions/setup_environment
+
+      - name: Get latest image tag
+        id: get_tag
+        uses: pozetroninc/github-action-get-latest-release@v0.8.0
+        with:
+          owner: ${{ github.repository_owner }}
+          repo: ${{ github.event.repository.name }}
+          excludes: prerelease, draft
+
+      - name: Scan image for vulnerabilities
+        id: scan
+        run: |
+          task backend:ci-image-scan
+        env:
+          IMAGE_REGISTRY: ghcr.io/${{ github.repository_owner }}
+          IMAGE_NAME: ${{ github.event.repository.name }}
+          IMAGE_TAG: ${{ steps.get_tag.outputs.release }}
+
+      - name: Report vulnerabilities
+        uses: ovsds/create-or-update-unique-issue-action@v1
+        with:
+          title: "Security scan issues for ${{ steps.get_tag.outputs.release }}"
+          body: |
+            ## Vulnerabilities found
+            ```
+            ${{ steps.scan.outputs.stdout }}
+            ```
+          unique-title-includes: "Security scan issues for "
+          close: ${{ steps.scan.outputs.exit_code == 0 }}
diff --git a/backend/Dockerfile b/backend/Dockerfile
index 78f4eae..6df4ca9 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -23,11 +23,11 @@ COPY lib /opt/app/lib
 WORKDIR /opt/app
 CMD [".venv/bin/python", "-m", "bin.main"]
 
-FROM builder as builder_dev
+FROM builder AS builder_dev
 
 RUN poetry install --with dev
 
-FROM ${BASE_RUNTIME_IMAGE} as runtime_dev
+FROM ${BASE_RUNTIME_IMAGE} AS runtime_dev
 
 RUN mkdir --parents /opt/app
 COPY --from=builder_dev /opt/app/.venv /opt/app/.venv
diff --git a/backend/Taskfile.yaml b/backend/Taskfile.yaml
index fb2c771..15f1b4e 100644
--- a/backend/Taskfile.yaml
+++ b/backend/Taskfile.yaml
@@ -116,16 +116,26 @@ tasks:
 
   image-build:
     desc: Build image target for local usage
-    requires:
-      vars:
-        - TARGET
     cmds:
       - echo 'Building image {{.TARGET}} target...'
       - docker build
         --tag {{.IMAGE_NAME}}:{{.TARGET}}
         {{ if .TAG }}--tag {{.TAG}}{{ end }}
         --target {{.TARGET}}
+        --load
         .
+    vars:
+      TARGET: '{{.TARGET | default "runtime"}}'
+
+  image-scan:
+    desc: Scan image for vulnerabilities
+    cmds:
+      - echo 'Scanning image for vulnerabilities...'
+      - trivy image
+        --config trivy.yaml
+        {{.IMAGE_NAME}}:{{.TARGET}}
+    vars:
+      TARGET: '{{.TARGET | default "runtime"}}'
 
   test:
     desc: Run tests
@@ -245,3 +255,15 @@ tasks:
     cmds:
       - echo 'Uploading backend image...'
       - docker push {{.IMAGE_REGISTRY}}/{{.IMAGE_NAME}}:{{.IMAGE_TAG}}
+
+  ci-image-scan:
+    desc: Scan image for vulnerabilities
+    requires:
+      vars:
+        - IMAGE_TAG
+        - IMAGE_REGISTRY
+    cmds:
+      - echo 'Scanning image for vulnerabilities...'
+      - trivy image
+        --config trivy.yaml
+        {{.IMAGE_REGISTRY}}/{{.IMAGE_NAME}}:{{.IMAGE_TAG}}
diff --git a/backend/trivy.yaml b/backend/trivy.yaml
new file mode 100644
index 0000000..0336b17
--- /dev/null
+++ b/backend/trivy.yaml
@@ -0,0 +1,11 @@
+scan:
+  scanners:
+    - vuln
+    - misconfig
+    - secret
+
+severity:
+  - HIGH
+  - CRITICAL
+
+exit-code: 1