Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the `engine.io` package starting from version `4.0.0`, including those who uses depending packages like `socket.io`. Versions prior to `4.0.0` are not impacted. A fix has been released for each major branch, namely `4.1.2` for the `4.x.x` branch, `5.2.1` for the `5.x.x` branch, and `6.1.1` for the `6.x.x` branch. There is no known workaround except upgrading to a safe version.

Published at
2022-01-12
4 days ago
Modified
2022-01-12
4 days ago
2022
Year
The year of the turtle

https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f

CONFIRM:https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f

https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab

MISC:https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab

https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db

MISC:https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db

https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c

MISC:https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c

https://github.com/socketio/engine.io/releases/tag/4.1.2

MISC:https://github.com/socketio/engine.io/releases/tag/4.1.2

https://github.com/socketio/engine.io/releases/tag/5.2.1

MISC:https://github.com/socketio/engine.io/releases/tag/5.2.1

https://github.com/socketio/engine.io/releases/tag/6.1.1

MISC:https://github.com/socketio/engine.io/releases/tag/6.1.1

Vulnerability RAW

{
	"Title": {
		"_text": "CVE-2022-21676"
	},
	"Notes": {
		"Note": [
			{
				"_text": "Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the `engine.io` package starting from version `4.0.0`, including those who uses depending packages like `socket.io`. Versions prior to `4.0.0` are not impacted. A fix has been released for each major branch, namely `4.1.2` for the `4.x.x` branch, `5.2.1` for the `5.x.x` branch, and `6.1.1` for the `6.x.x` branch. There is no known workaround except upgrading to a safe version."
			},
			{
				"_text": "2022-01-12"
			},
			{
				"_text": "2022-01-12"
			}
		]
	},
	"CVE": {
		"_text": "CVE-2022-21676"
	},
	"References": {
		"Reference": [
			{
				"URL": {
					"_text": "https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f"
				},
				"Description": {
					"_text": "CONFIRM:https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f"
				}
			},
			{
				"URL": {
					"_text": "https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab"
				},
				"Description": {
					"_text": "MISC:https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab"
				}
			},
			{
				"URL": {
					"_text": "https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db"
				},
				"Description": {
					"_text": "MISC:https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db"
				}
			},
			{
				"URL": {
					"_text": "https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c"
				},
				"Description": {
					"_text": "MISC:https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c"
				}
			},
			{
				"URL": {
					"_text": "https://github.com/socketio/engine.io/releases/tag/4.1.2"
				},
				"Description": {
					"_text": "MISC:https://github.com/socketio/engine.io/releases/tag/4.1.2"
				}
			},
			{
				"URL": {
					"_text": "https://github.com/socketio/engine.io/releases/tag/5.2.1"
				},
				"Description": {
					"_text": "MISC:https://github.com/socketio/engine.io/releases/tag/5.2.1"
				}
			},
			{
				"URL": {
					"_text": "https://github.com/socketio/engine.io/releases/tag/6.1.1"
				},
				"Description": {
					"_text": "MISC:https://github.com/socketio/engine.io/releases/tag/6.1.1"
				}
			}
		]
	}
}