Vulnerability in Socket Engine.io
CVE-2022-41940
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.
EPSS: 0.019 (78.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H.
Affected products
- Socket Engine.io
- Socketio Engine.io — versions < 3.6.1, >= 4.0.0, < 6.2.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (Exploit, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-41940?
- CVE-2022-41940 is a high-severity vulnerability in Socket Engine.io, classified under CWE-248. CVSS score: 7.1/10. Published 2022-11-22.
- How severe is CVE-2022-41940?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2022-41940 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.