CVE-2023-31125

MEDIUM EPSS 67.4%
Published May 8, 20233y ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published May 8, 2023 3y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
67.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-248

Affected Products 1

VendorProductVersionRange
socketengine.io*≥5.1.0  –  <6.4.2

References 4

  • github.com https://github.com/socketio/engine.io/commit/fc480b4f305e16fe5972cf337d055e598372dc44
    Patch
  • github.com https://github.com/socketio/engine.io/releases/tag/6.4.2
    Release Notes
  • github.com https://github.com/socketio/engine.io/security/advisories/GHSA-q9mw-68c2-j6m5
    Vendor Advisory
  • security.netapp.com https://security.netapp.com/advisory/ntap-20230622-0002/

Remediation

  • github.com https://github.com/socketio/engine.io/commit/fc480b4f305e16fe5972cf337d055e598372dc44
    Patch