CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2022-41940
Medium (6.5) in socket engine.io. EPSS 2.1% chance of exploitation in the next 30 days. Fixed in engine.io 3.6.1, 6.2.1.
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.
Severity
- EPSS
- 2.1% chance of exploitation in the next 30 days; higher than 81% of CVEs (scores of 2026-10-31)
- CWE
- CWE-248
- Published
- Modified
- Record from
- the NVD, synced
Affected
- socket:engine.io
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-r7qp-cfhv-p84w | npm | engine.io | <3.6.1 | 3.6.1 |
| GHSA-r7qp-cfhv-p84w | npm | engine.io | >=4.0.0 <6.2.1 | 6.2.1 |
References
- https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6
- https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085
- https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w
- https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6
- https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085