High severity7.1NVD Advisory· Published Nov 22, 2022· Updated Jun 17, 2026
CVE-2022-41940
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
3Patches
Vulnerability mechanics
References
5- github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6nvdPatchThird Party AdvisoryWEB
- github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085nvdPatchThird Party AdvisoryWEB
- github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84wnvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-r7qp-cfhv-p84wghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2022-41940ghsaADVISORY
News mentions
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