GHSA-q9mw-68c2-j6m5

Source

https://github.com/advisories/GHSA-q9mw-68c2-j6m5

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/05/GHSA-q9mw-68c2-j6m5/GHSA-q9mw-68c2-j6m5.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-q9mw-68c2-j6m5

Aliases

CVE-2023-31125

Published

2023-05-03T21:56:51Z

Modified

2026-09-10T03:50:08Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

engine.io Uncaught Exception vulnerability

Details

Impact

A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process.

TypeError: Cannot read properties of undefined (reading 'handlesUpgrades')
    at Server.onWebSocket (build/server.js:515:67)

This impacts all the users of the engine.io package, including those who uses depending packages like socket.io.

Patches

A fix has been released today (2023/05/02): 6.4.2

This bug 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.

For socket.io users:

Version range	`engine.io` version	Needs minor update?
`socket.io@4.6.x`	`~6.4.0`	`npm audit fix` should be sufficient
`socket.io@4.5.x`	`~6.2.0`	Please upgrade to `socket.io@4.6.x`
`socket.io@4.4.x`	`~6.1.0`	Please upgrade to `socket.io@4.6.x`
`socket.io@4.3.x`	`~6.0.0`	Please upgrade to `socket.io@4.6.x`
`socket.io@4.2.x`	`~5.2.0`	Please upgrade to `socket.io@4.6.x`
`socket.io@4.1.x`	`~5.1.1`	Please upgrade to `socket.io@4.6.x`
`socket.io@4.0.x`	`~5.0.0`	Not impacted
`socket.io@3.1.x`	`~4.1.0`	Not impacted
`socket.io@3.0.x`	`~4.0.0`	Not impacted
`socket.io@2.5.0`	`~3.6.0`	Not impacted
`socket.io@2.4.x` and below	`~3.5.0`	Not impacted

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

Thanks to Thomas Rinsma from Codean for the responsible disclosure.

Database specific

{
    "cwe_ids":  [
        "CWE-248"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2023-05-03T21:56:51Z",
    "nvd_published_at":  "2023-05-08T21:15:11Z",
    "severity":  "MODERATE"
}

References

Affected packages

npm / engine.io

Package

Name: engine.io; View open source insights on deps.dev
Purl: pkg:npm/engine.io

Affected ranges

Type: SEMVER
Events: Introduced

5.1.0

Fixed

6.4.2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/05/GHSA-q9mw-68c2-j6m5/GHSA-q9mw-68c2-j6m5.json"