SEPTEMBER 22, 2026
Live Feed
Back to database
Case File

CVE-2026-8830

MEDIUM · CVSS 4.3 EPSS 0.39%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-05-19 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. It affects Java. Exploitation may require the attacker to be authenticated.

CVE
CVE-2026-8830
Severity
MEDIUM
CVSS
4.3
EPSS
0.39%
Java

Original NVD Description

A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction() fails to validate that the newly created credential's parameters, such as public key algorithms, match the realm's configured WebAuthn policies. This could lead to the creation of credentials that do not adhere to administrative security requirements, potentially weakening the overall security posture of the system by allowing non-compliant authentication methods.

Related CVEs

Other vulnerabilities affecting the same vendor(s)