CVE-2026-73561

Hub is a Node.js WebSocket server and client with added features. Prior to 0.2.16, every incoming unauthenticated WebSocket connection triggers loadDefaultConnectionEventListeners to call requestClientId, which calls rpc.send for the get-client-id action and pushes a request into RPC.requests. The RPC.waitForReply function starts a setInterval polling loop every 10 milliseconds that is cleared only after a matching reply; if the client remains silent and closes, the timer and pending request stay allocated because the socket close path does not cancel them. Repeated connections therefore cause unbounded timers and heap entries, exhausting CPU and memory and making the server unavailable. This issue is fixed in version 0.2.16.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/anephenix/hub/commit/931576db3cdbf4f1583bd2c3c8759c4f4e032ab3
https://github.com/anephenix/hub/security/advisories/GHSA-g5vv-q72c-7j78
https://github.com/anephenix/hub/tree/v0.2.16
https://github.com/anephenix/hub/security/advisories/GHSA-g5vv-q72c-7j78

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-13 18:18

Updated : 2026-09-10 20:30

NVD link : CVE-2026-73561

Mitre link : CVE-2026-73561

CVE.ORG link : CVE-2026-73561

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

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