CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2023-31125
Medium (6.5) in socket engine.io. EPSS 1.3% chance of exploitation in the next 30 days. Fixed in engine.io 6.4.2.
Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. An uncaught exception vulnerability was introduced in version 5.1.0 and included in version 4.1.0 of the `socket.io` parent package. Older versions are not impacted. 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 use depending packages like `socket.io`. This issue was fixed in version 6.4.2 of Engine.IO. There is no known workaround except upgrading to a safe version.
Severity
- EPSS
- 1.3% chance of exploitation in the next 30 days; higher than 70% 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-q9mw-68c2-j6m5 | npm | engine.io | >=5.1.0 <6.4.2 | 6.4.2 |
References
- https://github.com/socketio/engine.io/commit/fc480b4f305e16fe5972cf337d055e598372dc44
- https://github.com/socketio/engine.io/releases/tag/6.4.2
- https://github.com/socketio/engine.io/security/advisories/GHSA-q9mw-68c2-j6m5
- https://security.netapp.com/advisory/ntap-20230622-0002/
- https://github.com/socketio/engine.io/commit/fc480b4f305e16fe5972cf337d055e598372dc44