Uncaught Exception in engine.io

{
  "id": "cdd66a83341ba030b58928c9d9e90cfcca165457ed3b7fc34dec5ff3f5eed276",
  "url": "https://osv.dev/vulnerability/CVE-2022-21676",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Uncaught Exception in engine.io",
    "summary": "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.",
    "evidence": "osv:CVE-2022-21676",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-21676",
      "aliases": [
        "CVE-2022-21676",
        "GHSA-273r-mgr4-v34f"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/socketio/engine.io",
              "type": "GIT",
              "events": [
                {
                  "introduced": "70b1c36be112671b690736de1a24753e8ec5ba22"
                },
                {
                  "fixed": "c6315af44826b87f6802574f1ef79dfa63777fab"
                },
                {
                  "introduced": "887ba06536a1fe0cd34e8b36cd31235e4f90b31d"
                },
                {
                  "fixed": "d36199cfe03caac96f5e84326561e9ccd460df1e"
                },
                {
                  "introduced": "fe5d97fc3d7a26d34bce786a97962fae3d7ce17f"
                },
                {
                  "fixed": "f3b761dc560e6cd045ef42939dc28d7138f245e9"
                },
                {
                  "fixed": "66f889fc1d966bf5bfa0de1939069153643874ab"
                },
                {
                  "fixed": "a70800d7e96da32f6e6622804ef659ebc58659db"
                },
                {
                  "fixed": "c0e194d44933bd83bf9a4b126fca68ba7bf5098c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:socket:engine.io:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "fixed": "4.1.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:socket:engine.io:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "5.0.0"
                      },
                      {
                        "fixed": "5.2.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:socket:engine.io:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "6.0.0"
                      },
                      {
                        "fixed": "6.1.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "66f889fc1d966bf5bfa0de1939069153643874ab"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a70800d7e96da32f6e6622804ef659ebc58659db"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c0e194d44933bd83bf9a4b126fca68ba7bf5098c"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c6315af44826b87f6802574f1ef79dfa63777fab"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "4.1.2"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d36199cfe03caac96f5e84326561e9ccd460df1e"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "5.2.1"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f3b761dc560e6cd045ef42939dc28d7138f245e9"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "6.1.1"
                  }
                ]
              }
            },
            {
              "repo": "https://github.com/socketio/socket.io",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5eaeffc8e2244b73dd13fd2562c9684ad289997b"
                },
                {
                  "fixed": "1633150b2bcdebd3c39dc37f7329e84e9951a15e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:socket:engine.io:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "fixed": "4.1.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.2.0",
            "4.1.1",
            "6.1.0",
            "6.0.0",
            "5.1.1",
            "5.1.0",
            "5.0.0",
            "4.1.0",
            "4.0.6",
            "4.0.5",
            "4.0.4",
            "4.0.3",
            "4.0.2",
            "4.0.1",
            "4.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-21676.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.600749814Z",
      "provider": "osv",
      "references": [
        "https://github.com/socketio/engine.io/releases/tag/4.1.2",
        "https://github.com/socketio/engine.io/releases/tag/5.2.1",
        "https://github.com/socketio/engine.io/releases/tag/6.1.1",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21676.json",
        "https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-21676",
        "https://security.netapp.com/advisory/ntap-20220209-0002/",
        "https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab",
        "https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db",
        "https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-754"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21676.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-21676",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497747,
  "published_at": "2022-01-12T18:25:15+00:00"
}