CVE-2022-41940

Public Exploit
Uncaught exception in engine.io

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.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 3.31% Top 15%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: socketio engine.io
Published at:
Updated at:

References

Link Tags
https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w third party advisory exploit
https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6 third party advisory patch
https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-41940?
CVE-2022-41940 has been scored as a high severity vulnerability.
How to fix CVE-2022-41940?
To fix CVE-2022-41940, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-41940 being actively exploited in the wild?
It is possible that CVE-2022-41940 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-41940?
CVE-2022-41940 affects socketio engine.io.
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