diff --git a/core/src/main/java/org/testcontainers/containers/startupcheck/IsRunningStartupCheckStrategy.java b/core/src/main/java/org/testcontainers/containers/startupcheck/IsRunningStartupCheckStrategy.java
index f161a8e158e..69691533779 100644
--- a/core/src/main/java/org/testcontainers/containers/startupcheck/IsRunningStartupCheckStrategy.java
+++ b/core/src/main/java/org/testcontainers/containers/startupcheck/IsRunningStartupCheckStrategy.java
@@ -11,13 +11,35 @@
  */
 public class IsRunningStartupCheckStrategy extends StartupCheckStrategy {
 
-    @SuppressWarnings("deprecation")
     @Override
+    @SuppressWarnings("deprecation")
     public boolean waitUntilStartupSuccessful(GenericContainer<?> container) {
-        // Optimization: container already has the initial "after start" state, check it first
-        if (checkState(container.getContainerInfo().getState()) == StartupStatus.SUCCESSFUL) {
-            return true;
+        InspectContainerResponse.ContainerState cachedState = container.getContainerInfo().getState();
+        StartupStatus cachedStatus = checkState(cachedState);
+
+        if (cachedStatus == StartupStatus.SUCCESSFUL) {
+            // Cached state shows the container as running/exited-success — verify with
+            // one live Docker inspect to detect stale state (e.g., container crashed
+            // between the port-mapping check and this startup check).
+            try {
+                if (
+                    checkStartupState(container.getDockerClient(), container.getContainerId()) ==
+                    StartupStatus.SUCCESSFUL
+                ) {
+                    return true;
+                }
+                // Live state doesn't match cached — container may have crashed.
+                // Fall through to full rate-limited polling.
+            } catch (Exception e) {
+                // Live inspect failed (e.g., Docker timeout on slow CI) — trust
+                // the cached state as the best available information.
+                return true;
+            }
+        } else if (cachedStatus == StartupStatus.FAILED) {
+            // Container already exited with a non-zero exit code
+            return false;
         }
+
         return super.waitUntilStartupSuccessful(container);
     }
 
diff --git a/core/src/test/java/org/testcontainers/containers/startupcheck/IsRunningStartupCheckStrategyTest.java b/core/src/test/java/org/testcontainers/containers/startupcheck/IsRunningStartupCheckStrategyTest.java
index fc7a60c2115..a4fcd3867cc 100644
--- a/core/src/test/java/org/testcontainers/containers/startupcheck/IsRunningStartupCheckStrategyTest.java
+++ b/core/src/test/java/org/testcontainers/containers/startupcheck/IsRunningStartupCheckStrategyTest.java
@@ -1,6 +1,5 @@
 package org.testcontainers.containers.startupcheck;
 
-import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.testcontainers.TestImages;
 import org.testcontainers.containers.GenericContainer;
@@ -17,7 +16,6 @@ void testCommandQuickExitSuccess() {
     }
 
     @Test
-    @Disabled("This test can fail to throw an AssertionError if the container doesn't fail quickly enough")
     void testCommandQuickExitFailure() {
         try (GenericContainer container = new GenericContainer<>(TestImages.TINY_IMAGE).withCommand("/bin/false")) {
             assertThatThrownBy(container::start)
@@ -34,4 +32,16 @@ void testCommandStaysRunning() {
             container.start(); // should start with no Exception
         }
     }
+
+    @Test
+    void testQuickExitWithDifferentExitCode() {
+        try (
+            GenericContainer container = new GenericContainer<>(TestImages.TINY_IMAGE)
+                .withCommand("/bin/sh", "-c", "exit 42")
+        ) {
+            assertThatThrownBy(container::start)
+                .hasStackTraceContaining("Container startup failed")
+                .hasStackTraceContaining("Container did not start correctly");
+        }
+    }
 }
diff --git a/modules/postgresql/src/test/java/org/testcontainers/postgresql/PostgreSQLContainerTest.java b/modules/postgresql/src/test/java/org/testcontainers/postgresql/PostgreSQLContainerTest.java
index beefa3776b1..7eb1d6b8f0a 100644
--- a/modules/postgresql/src/test/java/org/testcontainers/postgresql/PostgreSQLContainerTest.java
+++ b/modules/postgresql/src/test/java/org/testcontainers/postgresql/PostgreSQLContainerTest.java
@@ -2,6 +2,7 @@
 
 import org.junit.jupiter.api.Test;
 import org.testcontainers.PostgreSQLTestImages;
+import org.testcontainers.containers.ContainerLaunchException;
 import org.testcontainers.db.AbstractContainerDatabaseTest;
 
 import java.sql.ResultSet;
@@ -11,6 +12,7 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatNoException;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
 class PostgreSQLContainerTest extends AbstractContainerDatabaseTest {
     static {
@@ -122,6 +124,22 @@ void testWithAdditionalUrlParamInJdbcUrl() {
         }
     }
 
+    @Test
+    void testContainerExitBeforeStartupCheck() {
+        // Regression test for #11860: verify that a PostgreSQLContainer which exits before/during
+        // startup produces a handled ContainerLaunchException from the startup check, not a
+        // suppressed or cascading error from cleanup (getLogs/stop throwing NotFoundException).
+        try (
+            PostgreSQLContainer postgres = new PostgreSQLContainer(PostgreSQLTestImages.POSTGRES_TEST_IMAGE)
+.withCommand("/bin/false")
+        ) {
+            assertThatThrownBy(postgres::start)
+                .isInstanceOf(ContainerLaunchException.class)
+                .hasStackTraceContaining("Container startup failed")
+                .hasStackTraceContaining("Container did not start correctly.");
+        }
+    }
+
     private void assertHasCorrectExposedAndLivenessCheckPorts(PostgreSQLContainer postgres) {
         assertThat(postgres.getExposedPorts()).containsExactly(PostgreSQLContainer.POSTGRESQL_PORT);
         assertThat(postgres.getLivenessCheckPortNumbers())