diff --git a/app/Services/Post/MediaAttacher.php b/app/Services/Post/MediaAttacher.php
index d84ec4ca..3319eb63 100644
--- a/app/Services/Post/MediaAttacher.php
+++ b/app/Services/Post/MediaAttacher.php
@@ -10,6 +10,7 @@
 use App\Models\Workspace;
 use Illuminate\Support\Facades\Http;
 use RuntimeException;
+use Throwable;
 
 /**
  * Downloads public URLs and attaches them as media to a post — used by
@@ -153,7 +154,8 @@ private function download(string $url): ?array
                     },
                 ])
                 ->get($url);
-        } catch (RuntimeException) {
+        } catch (Throwable) {
+            // Any fetch failure (timeout, DNS, refused, oversize) is a failed download.
             @unlink($temp);
 
             return null;
diff --git a/tests/Feature/Api/PostMediaApiTest.php b/tests/Feature/Api/PostMediaApiTest.php
index c4008e32..daa7c3eb 100644
--- a/tests/Feature/Api/PostMediaApiTest.php
+++ b/tests/Feature/Api/PostMediaApiTest.php
@@ -8,6 +8,7 @@
 use App\Models\PostPlatform;
 use App\Models\SocialAccount;
 use App\Models\Workspace;
+use Illuminate\Http\Client\ConnectionException;
 use Illuminate\Http\UploadedFile;
 use Illuminate\Support\Facades\Http;
 use Illuminate\Support\Facades\Storage;
@@ -299,6 +300,36 @@
     expect(Media::where('mediable_id', $this->workspace->id)->count())->toBe(0);
 });
 
+it('rejects and rolls back when a media url connection fails (timeout/dns)', function () {
+    $this->socialAccount->update(['is_active' => true]);
+
+    Http::fake([
+        'cdn.example.com/good.jpg' => Http::response(
+            file_get_contents(__DIR__.'/../../fixtures/1x1.png'),
+            200,
+            ['Content-Type' => 'image/png'],
+        ),
+        'cdn.example.com/timeout.jpg' => fn () => throw new ConnectionException('Connection timed out'),
+    ]);
+
+    $this->withHeaders(['Authorization' => 'Bearer '.$this->plainToken])
+        ->postJson(route('api.posts.store'), [
+            'content' => 'Timeout media post',
+            'media' => [
+                ['url' => 'https://cdn.example.com/good.jpg'],
+                ['url' => 'https://cdn.example.com/timeout.jpg'],
+            ],
+            'platforms' => [
+                ['social_account_id' => $this->socialAccount->id, 'content_type' => 'linkedin_post'],
+            ],
+        ])
+        ->assertUnprocessable()
+        ->assertJsonValidationErrors(['media']);
+
+    expect(Post::where('content', 'Timeout media post')->exists())->toBeFalse();
+    expect(Media::where('mediable_id', $this->workspace->id)->count())->toBe(0);
+});
+
 it('rejects creating a post when an external media url is not a supported type', function () {
     $this->socialAccount->update(['is_active' => true]);