{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-21676",
        "STATE": "PUBLIC",
        "TITLE": "Uncaught Exception in engine.io"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "engine.io",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": ">= 4.0.0, < 4.1.2"
                                        },
                                        {
                                            "version_value": ">= 5.0.0, < 5.2.1"
                                        },
                                        {
                                            "version_value": ">= 6.0.0, < 6.1.1"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "socketio"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "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."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-754: Improper Check for Unusual or Exceptional Conditions"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f",
                "refsource": "CONFIRM",
                "url": "https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f"
            },
            {
                "name": "https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab",
                "refsource": "MISC",
                "url": "https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab"
            },
            {
                "name": "https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db",
                "refsource": "MISC",
                "url": "https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db"
            },
            {
                "name": "https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c",
                "refsource": "MISC",
                "url": "https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c"
            },
            {
                "name": "https://github.com/socketio/engine.io/releases/tag/4.1.2",
                "refsource": "MISC",
                "url": "https://github.com/socketio/engine.io/releases/tag/4.1.2"
            },
            {
                "name": "https://github.com/socketio/engine.io/releases/tag/5.2.1",
                "refsource": "MISC",
                "url": "https://github.com/socketio/engine.io/releases/tag/5.2.1"
            },
            {
                "name": "https://github.com/socketio/engine.io/releases/tag/6.1.1",
                "refsource": "MISC",
                "url": "https://github.com/socketio/engine.io/releases/tag/6.1.1"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20220209-0002/",
                "url": "https://security.netapp.com/advisory/ntap-20220209-0002/"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-273r-mgr4-v34f",
        "discovery": "UNKNOWN"
    }
}