Moderate severityNVD Advisory· Published Nov 22, 2022· Updated Apr 22, 2025
Uncaught exception in engine.io
CVE-2022-41940
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, including those who uses depending packages like socket.io. There is no known workaround except upgrading to a safe version. There are patches for this issue released in versions 3.6.1 and 6.2.1.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
engine.ionpm | < 3.6.1 | 3.6.1 |
engine.ionpm | >= 4.0.0, < 6.2.1 | 6.2.1 |
Affected products
2Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-r7qp-cfhv-p84wghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2022-41940ghsaADVISORY
- github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6ghsaWEB
- github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085ghsaWEB
- github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84wghsaWEB
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