diff --git a/apps/files_sharing/lib/External/Storage.php b/apps/files_sharing/lib/External/Storage.php
index 35a9b8a802dff..56392b7529f51 100644
--- a/apps/files_sharing/lib/External/Storage.php
+++ b/apps/files_sharing/lib/External/Storage.php
@@ -559,9 +559,10 @@ public function free_space(string $path): int|float|false {
 	}
 
 	private function getDefaultRequestOptions(): array {
+		$timeout = $this->config->getSystemValueInt('sharing.federation.request_timeout', 10);
 		$options = [
-			'timeout' => 10,
-			'connect_timeout' => 10,
+			'timeout' => $timeout,
+			'connect_timeout' => $timeout,
 		];
 		if ($this->config->getSystemValueBool('sharing.federation.allowSelfSignedCertificates')) {
 			$options['verify'] = false;
diff --git a/apps/files_sharing/tests/ExternalStorageTest.php b/apps/files_sharing/tests/ExternalStorageTest.php
index 660fae06fe764..a9723ef9cf2bd 100644
--- a/apps/files_sharing/tests/ExternalStorageTest.php
+++ b/apps/files_sharing/tests/ExternalStorageTest.php
@@ -15,6 +15,7 @@
 use OCP\Http\Client\IClientService;
 use OCP\Http\Client\IResponse;
 use OCP\ICertificateManager;
+use OCP\IConfig;
 use OCP\IUser;
 use OCP\OCM\IOCMDiscoveryService;
 use OCP\OCM\IOCMProvider;
@@ -116,6 +117,75 @@ public function testIfTestReturnsTheValue(): void {
 		$result = $storage->test();
 		$this->assertSame(true, $result);
 	}
+
+	public static function requestTimeoutProvider(): array {
+		return [
+			'default' => [null, 10],
+			'configured' => [25, 25],
+		];
+	}
+
+	#[\PHPUnit\Framework\Attributes\DataProvider(methodName: 'requestTimeoutProvider')]
+	public function testGetShareInfoUsesConfiguredRequestTimeout(?int $configured, int $expected): void {
+		if ($configured !== null) {
+			$realConfig = Server::get(IConfig::class);
+			$config = $this->createMock(IConfig::class);
+			$config->method('getSystemValueInt')
+				->willReturnCallback(fn (string $key, int $default = 0): int => $key === 'sharing.federation.request_timeout'
+					? $configured
+					: $realConfig->getSystemValueInt($key, $default));
+			$config->method('getSystemValueBool')
+				->willReturnCallback(fn (string $key, bool $default = false): bool => $realConfig->getSystemValueBool($key, $default));
+			$config->method('getSystemValue')
+				->willReturnCallback(fn (string $key, mixed $default = ''): mixed => $realConfig->getSystemValue($key, $default));
+			$this->overwriteService(IConfig::class, $config);
+		}
+
+		$response = $this->createMock(IResponse::class);
+		$response->method('getBody')
+			->willReturn('{"id":1}');
+		$client = $this->createMock(IClient::class);
+		$client->expects($this->once())
+			->method('post')
+			->with(
+				'https://remoteserver/index.php/apps/files_sharing/shareinfo?t=abcdef',
+				$this->callback(function (array $options) use ($expected): bool {
+					$this->assertSame($expected, $options['timeout']);
+					$this->assertSame($expected, $options['connect_timeout']);
+					return true;
+				}),
+			)
+			->willReturn($response);
+		$clientService = $this->createMock(IClientService::class);
+		$clientService->method('newClient')
+			->willReturn($client);
+		$this->overwriteService(IClientService::class, $clientService);
+
+		$uri = 'https://remoteserver';
+		$discoveryService = $this->createMock(IOCMDiscoveryService::class);
+		$discoveryService->method('discover')
+			->willReturn($this->createMock(IOCMProvider::class));
+		$storage = $this->getMockBuilder(Storage::class)
+			->setConstructorArgs([[
+				'cloudId' => new CloudId('testOwner@' . $uri, 'testOwner', $uri),
+				'remote' => $uri,
+				'owner' => 'testOwner',
+				'mountpoint' => 'remoteshare',
+				'token' => 'abcdef',
+				'password' => '',
+				'manager' => $this->createMock(ExternalShareManager::class),
+				'certificateManager' => Server::get(ICertificateManager::class),
+				'HttpClientService' => $clientService,
+				'discoveryService' => $discoveryService,
+				'recipient' => $this->createMock(IUser::class),
+			]])
+			->onlyMethods(['remoteIsOwnCloud'])
+			->getMock();
+		$storage->method('remoteIsOwnCloud')
+			->willReturn(true);
+
+		$this->assertSame(['id' => 1], $storage->getShareInfo());
+	}
 }
 
 /**
diff --git a/config/config.sample.php b/config/config.sample.php
index 75aafed608686..6ea2d48e79657 100644
--- a/config/config.sample.php
+++ b/config/config.sample.php
@@ -2308,6 +2308,16 @@
 	 */
 	'sharing.federation.allowSelfSignedCertificates' => false,
 
+	/**
+	 * The timeout in seconds for requests made to remote servers when accessing
+	 * federated shares, e.g. fetching the share info or checking whether the
+	 * remote server is reachable. Increase it if big federated shares take longer
+	 * to answer than the default.
+	 *
+	 * Defaults to ``10`` seconds.
+	 */
+	'sharing.federation.request_timeout' => 10,
+
 	/**
 	 * Override the ``apiVersion`` advertised in the local OCM discovery document.
 	 * Setting this to a non-empty string also removes the non-standard ``version``