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CVE-2022-21676 (GCVE-0-2022-21676)

Vulnerability from cvelistv5 – Published: 2022-01-12 18:25 – Updated: 2025-04-23 19:13
VLAI
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 15:58 UTC
CWE
  • CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
Vendor Product Version CPE status
socketio engine.io Affected: >= 4.0.0, < 4.1.2
Affected: >= 5.0.0, < 5.2.1
Affected: >= 6.0.0, < 6.1.1
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                  "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"
                },
                {
                  "name": "https://security.netapp.com/advisory/ntap-20220209-0002/",
                  "refsource": "CONFIRM",
                  "url": "https://security.netapp.com/advisory/ntap-20220209-0002/"
                }
              ]
            },
            "source": {
              "advisory": "GHSA-273r-mgr4-v34f",
              "discovery": "UNKNOWN"
            }
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2022-21676",
        "datePublished": "2022-01-12T18:25:15.000Z",
        "dateReserved": "2021-11-16T00:00:00.000Z",
        "dateUpdated": "2025-04-23T19:13:15.800Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.