CVE-2022-41940
mediumpriority · track · 27EPSS 0.021 · 82 %ileDEEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.1
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (8)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-0180Dell Data Protection Advisor: Mehrere SchwachstellenDeutsch2026-01-20csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell Data Protection Advisor ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu erzeugen, Sicherheitsmaßnahmen zu umgehen und nicht näher spezifizierte Angriffe zu starten.
- GHSA-r7qp-cfhv-p84wUncaught exception in engine.io2022-11-21ghsa · osvUS
### Impact A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. ``` events.js:292 throw er; // Unhandled 'error' event ^ Error: read ECONNRESET at TCP.onStreamRead (internal/stream_base_commons.js:209:20) Emitted 'error' event on Socket instance at: at emitErrorNT (internal/streams/destroy.js:106:8) at emitErrorCloseNT (internal/streams/destroy.js:74:3) at processTicksAndRejections (internal/process/task_queues.js:80:21) { errno: -104, code: 'ECONNRESET', syscall: 'read' } ``` This impacts all the users of the [`engine.io`](https://www.npmjs.com/package/engine.io) package, including those who uses depending packages like [`socket.io`](https://www.npmjs.com/package/socket.io). ### Patches A fix has been released today (2022/11/20): | Version range | Fixed version | |-------------------|---------------| | `engine.io@3.x.y` | `3.6.1` | | `engine.io@6.x.y` | `6.2.1` | For `socket.io` users: | Version range | `engine.io` version | Needs minor update? | |-----------------------------|---------------------|--------------------------------------------------------------------------------------------------------| | `socket.io@4.5.x` | `~6.2.0` | `npm audit fix` should be sufficient | | `socket.io@4.4.x` | `~6.1.0` | Please upgrade to `socket.io@4.5.x` | | `socket.io@4.3.x` | `~6.0.0` | Please upgrade to `socket.io@4.5.x` | | `socket.io@4.2.x` | `~5.2.0` | Please upgrade to `socket.io@4.5.x` | | `socket.io@4.1.x` | `~5.1.1` | Please upgrade to `socket.io@4.5.x` | | `socket.io@4.0.x` | `~5.0.0` | Please upgrade to `socket.io@4.5.x` | | `socket.io@3.1.x` | `~4.1.0` | Please upgrade to `socket.io@4.5.x` (see [here](https://socket.io/docs/v4/migrating-from-3-x-to-4-0/)) | | `socket.io@3.0.x` | `~4.0.0` | Please upgrade to `socket.io@4.5.x` (see [here](https://socket.io/docs/v4/migrating-from-3-x-to-4-0/)) | | `socket.io@2.5.0` | `~3.6.0` | `npm audit fix` should be sufficient | | `socket.io@2.4.x` and below | `~3.5.0` | Please upgrade to `socket.io@2.5.0` | ### Workarounds There is no known workaround except upgrading to a safe version. ### For more information If you have any questions or comments about this advisory: * Open an issue in [`engine.io`](https://github.com/socketio/engine.io) Thanks to [Jonathan Neve](https://github.com/jonathanneve) for the responsible disclosure.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (11)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2022-41940cnnvd
- https://cxsecurity.com/cveshow/CVE-2022-41940/cnnvd
- https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6cnnvd
- https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085cnnvd
- https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84wcnnvd
- https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6enisa_euvd
- https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085enisa_euvd
- https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84wenisa_euvd
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