Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Socket | Engine.Io | >= 4.0.0, < 4.1.2 |
Related Weaknesses (CWE)
References
- https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643PatchThird Party Advisory
- https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58PatchThird Party Advisory
- https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bfPatchThird Party Advisory
- https://github.com/socketio/engine.io/releases/tag/4.1.2Release NotesThird Party Advisory
- https://github.com/socketio/engine.io/releases/tag/5.2.1Release NotesThird Party Advisory
- https://github.com/socketio/engine.io/releases/tag/6.1.1Release NotesThird Party Advisory
- https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34fThird Party Advisory
- https://security.netapp.com/advisory/ntap-20220209-0002/Third Party Advisory
- https://github.com/socketio/engine.io/commit/66f889fc1d966bf5bfa0de1939069153643PatchThird Party Advisory
- https://github.com/socketio/engine.io/commit/a70800d7e96da32f6e6622804ef659ebc58PatchThird Party Advisory
- https://github.com/socketio/engine.io/commit/c0e194d44933bd83bf9a4b126fca68ba7bfPatchThird Party Advisory
- https://github.com/socketio/engine.io/releases/tag/4.1.2Release NotesThird Party Advisory
- https://github.com/socketio/engine.io/releases/tag/5.2.1Release NotesThird Party Advisory
- https://github.com/socketio/engine.io/releases/tag/6.1.1Release NotesThird Party Advisory
- https://github.com/socketio/engine.io/security/advisories/GHSA-273r-mgr4-v34fThird Party Advisory
FAQ
What is CVE-2022-21676?
CVE-2022-21676 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 th...
How severe is CVE-2022-21676?
CVE-2022-21676 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-21676?
Check the references section above for vendor advisories and patch information. Affected products include: Socket Engine.Io.