---
title: "CVE-2026-97363: WebSocket Application Programming Interface - Authentication Bypass"
description: "WebSocket Application Programming Interface contains a broken authentication caused by lack of rate limiting on authentication requests, letting attackers perform denial-of-service or brute-force attacks, exploit requires no special conditions."
url: https://panop.io/threat-heartbeat/CVE-2026-97363/
---

# CVE-2026-97363 WebSocket Application Programming Interface - Authentication Bypass

WebSocket Application Programming Interface contains a broken authentication caused by lack of rate limiting on authentication requests, letting attackers perform denial-of-service or brute-force attacks, exploit requires no special conditions.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.32% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-97363)

## Details

Type

Authentication Bypass

Impact

Denial Of Service, Broken Authentication

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

2 October 2026

Updated

15 October 2026

Weakness

[CWE-307](https://cwe.mitre.org/data/definitions/307.html)

## Vendor fix

Implement rate limiting on authentication requests or update to the latest version with this fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-97363](https://nvd.nist.gov/vuln/detail/CVE-2026-97363)
- [https://github.com/cisagov/CSAF/blob/develop/csaf\_files/OT/white/2026/icsa-26-274-02.json](https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-274-02.json)
- [https://www.cisa.gov/news-events/ics-advisories/icsa-26-274-02](https://www.cisa.gov/news-events/ics-advisories/icsa-26-274-02)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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