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Vulnerability record · CVE-2026-50176 · published 25 June 2026

CVE-2026-50176: Improper restriction of authentication attempts vulnerability

The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks or brute-force attacks to gain unauthorized access.

8.7 CVSS 4.0 High EPSS 0.71% · top 48.3% CWE-307 · Improper restriction of authentication attempts Deferred
8.7CVSS 4.0 base score
0.71%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
26 Jun 2026Last modified by NVD

Description

The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks or brute-force attacks to gain unauthorized access.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

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Source: NIST National Vulnerability Database (record CVE-2026-50176), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.