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CVE-2022-21676 Detail


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.


CVSS 3.x Severity and Metrics:

NIST CVSS score matches with CNA score
CNA:  GitHub, Inc.
Base Score:  7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: The NVD and the CNA have provided the same score. When this occurs only the CNA information is displayed, but the Acceptance Level icon for the CNA is given a checkmark to signify NVD concurrence.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643874ab Patch  Third Party Advisory 
https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58659db Patch  Third Party Advisory 
https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bf5098c Patch  Third Party Advisory 
https://github.com/socketio/engine.io/releases/tag/4.1.2 Release Notes  Third Party Advisory 
https://github.com/socketio/engine.io/releases/tag/5.2.1 Release Notes  Third Party Advisory 
https://github.com/socketio/engine.io/releases/tag/6.1.1 Release Notes  Third Party Advisory 
https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34f Third Party Advisory 
https://security.netapp.com/advisory/ntap-20220209-0002/ Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-755 Improper Handling of Exceptional Conditions cwe source acceptance level NIST  
CWE-754 Improper Check for Unusual or Exceptional Conditions Provider acceptance level GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
NVD Published Date:
NVD Last Modified:
GitHub, Inc.