diff --git a/.github/scripts/run-release-docker-integration.sh b/.github/scripts/run-release-docker-integration.sh
index 3769fee8796..409070ad4ee 100755
--- a/.github/scripts/run-release-docker-integration.sh
+++ b/.github/scripts/run-release-docker-integration.sh
@@ -1,6 +1,26 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
+cleanup_release_containers() {
+  container_ids="$(timeout 30 docker ps -aq --filter "label=org.qwen-code.ci.owner=${RELEASE_CONTAINER_OWNER}" 2>/dev/null)" || container_ids=''
+  if [ -n "$container_ids" ]; then
+    printf '%s\n' "$container_ids" | xargs -r timeout 60 docker rm -f > /dev/null 2>&1 || echo "::warning::failed to remove release containers for ${RELEASE_CONTAINER_OWNER}"
+  fi
+}
+
+if [ "${1:-}" = 'cleanup' ]; then
+  cleanup_release_containers
+  remaining="$(timeout 30 docker ps -aq --filter "label=org.qwen-code.ci.owner=${RELEASE_CONTAINER_OWNER}")"
+  if [ -n "$remaining" ]; then
+    echo "::error::release containers remain for ${RELEASE_CONTAINER_OWNER}: ${remaining//$'\n'/,}"
+    exit 1
+  fi
+  exit 0
+fi
+
+trap cleanup_release_containers EXIT
+trap 'exit 1' INT TERM
+
 sandbox_revision="$(git rev-parse HEAD)"
 sandbox_image="$(node -p "require('./packages/cli/package.json').config.sandboxImageUri")-release-${sandbox_revision}"
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4c90a84357b..3e46304d06f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -546,9 +546,17 @@ jobs:
         env:
           QWEN_SANDBOX: 'docker'
           BUILD_SANDBOX_FLAGS: '--label org.qwen-code.ci.sandbox=true'
+          RELEASE_CONTAINER_OWNER: '${{ github.run_id }}-${{ github.run_attempt }}-release'
+          SANDBOX_FLAGS: '--label org.qwen-code.ci.owner=${RELEASE_CONTAINER_OWNER}'
           RUNNER_ENVIRONMENT: '${{ runner.environment }}'
         run: '.release-workflow/.github/scripts/run-release-docker-integration.sh'
 
+      - name: 'Remove job-owned release containers'
+        if: "${{ always() && runner.environment == 'self-hosted' }}"
+        env:
+          RELEASE_CONTAINER_OWNER: '${{ github.run_id }}-${{ github.run_attempt }}-release'
+        run: '.release-workflow/.github/scripts/run-release-docker-integration.sh cleanup'
+
   audio_capture_prebuilds:
     name: 'Audio Capture Prebuilds'
     needs: 'prepare'
diff --git a/scripts/tests/release-workflow.test.js b/scripts/tests/release-workflow.test.js
index 7b4e41a6104..3c9bd534eca 100644
--- a/scripts/tests/release-workflow.test.js
+++ b/scripts/tests/release-workflow.test.js
@@ -2077,6 +2077,37 @@ describe('release workflow', () => {
     );
   });
 
+  it('reaps only the Docker integration containers owned by its job', () => {
+    const owner = '${{ github.run_id }}-${{ github.run_attempt }}-release';
+    const steps = releaseYaml.jobs.integration_docker.steps;
+    const testStep = steps.find(
+      (step) => step.name === 'Run Docker Integration Tests',
+    );
+    const cleanupStep = steps.find(
+      (step) => step.name === 'Remove job-owned release containers',
+    );
+
+    expect(testStep.env.RELEASE_CONTAINER_OWNER).toBe(owner);
+    expect(testStep.env.SANDBOX_FLAGS).toContain(
+      'org.qwen-code.ci.owner=${RELEASE_CONTAINER_OWNER}',
+    );
+    expect(dockerIntegrationScript).toContain(
+      'trap cleanup_release_containers EXIT',
+    );
+    expect(dockerIntegrationScript).toContain("trap 'exit 1' INT TERM");
+    expect(dockerIntegrationScript).toContain(
+      '--filter "label=org.qwen-code.ci.owner=${RELEASE_CONTAINER_OWNER}"',
+    );
+    expect(cleanupStep.if).toContain('always()');
+    expect(cleanupStep.env.RELEASE_CONTAINER_OWNER).toBe(owner);
+    expect(cleanupStep.run).toBe(
+      '.release-workflow/.github/scripts/run-release-docker-integration.sh cleanup',
+    );
+    expect(dockerIntegrationScript).toContain('docker rm -f > /dev/null');
+    expect(dockerIntegrationScript.match(/docker ps -aq/g)).toHaveLength(2);
+    expect(dockerIntegrationScript).toContain('release containers remain');
+  });
+
   it('digest-pins every sandbox base image', () => {
     // integration_docker builds on the shared pool, whose docker daemon
     // store persists across jobs: a co-resident job can retag a mutable
@@ -2530,11 +2561,15 @@ describe('release lane runner routing', () => {
     ]) {
       const job = releaseYaml.jobs[name];
       expect(job.env.RUNNER_ENVIRONMENT, name).toBeUndefined();
-      const testSteps = job.steps.filter((step) =>
-        /(?:vitest|test:integration|run-release-docker-integration)/.test(
-          String(step.run ?? ''),
-        ),
-      );
+      const testSteps = job.steps.filter((step) => {
+        const command = String(step.run ?? '');
+        return (
+          !command.endsWith(' cleanup') &&
+          /(?:vitest|test:integration|run-release-docker-integration)/.test(
+            command,
+          )
+        );
+      });
       expect(testSteps, name).toHaveLength(expectedSteps);
       for (const step of testSteps) {
         expect(step.env.RUNNER_ENVIRONMENT, `${name}: ${step.name}`).toBe(