diff --git a/.changeset/tender-papayas-jam.md b/.changeset/tender-papayas-jam.md
new file mode 100644
index 0000000000000..d9e85e6d29425
--- /dev/null
+++ b/.changeset/tender-papayas-jam.md
@@ -0,0 +1,5 @@
+---
+'@rocket.chat/meteor': patch
+---
+
+Limits Omnichannel webhook maximum response size to 10mb.
diff --git a/apps/meteor/app/livechat/server/api/v1/webhooks.ts b/apps/meteor/app/livechat/server/api/v1/webhooks.ts
index 4a5fdb50f7e44..276a910502d69 100644
--- a/apps/meteor/app/livechat/server/api/v1/webhooks.ts
+++ b/apps/meteor/app/livechat/server/api/v1/webhooks.ts
@@ -66,6 +66,7 @@ API.v1.addRoute(
 				body: sampleData,
 				// SECURITY: Webhooks can only be configured by users with enough privileges. It's ok to disable this check here.
 				ignoreSsrfValidation: true,
+				size: 10 * 1024 * 1024,
 			} as ExtendedFetchOptions;
 
 			const webhookUrl = settings.get<string>('Livechat_webhookUrl');
diff --git a/apps/meteor/app/livechat/server/lib/webhooks.ts b/apps/meteor/app/livechat/server/lib/webhooks.ts
index b0d2cd94f80e2..661b428cc7cb8 100644
--- a/apps/meteor/app/livechat/server/lib/webhooks.ts
+++ b/apps/meteor/app/livechat/server/lib/webhooks.ts
@@ -29,6 +29,7 @@ export async function sendRequest(
 			timeout,
 			// SECURITY: Webhooks can only be configured by users with enough privileges. It's ok to disable this check here.
 			ignoreSsrfValidation: true,
+			size: 10 * 1024 * 1024,
 		});
 
 		if (result.status === 200) {