CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 8.1. See the original NVD description below for full technical details.
CVE
CVE-2026-11800
Severity
HIGH
CVSS
8.1
EPSS
0.18%
Original NVD Description
A flaw was found in Keycloak. This JWT algorithm confusion vulnerability in the JWT Authorization Grant flow allows an attacker with valid client credentials to bypass signature verification. By forging an assertion, the attacker can create unauthorized access tokens. This enables the attacker to impersonate any federated user linked to the affected Identity Provider, leading to unauthorized access and potential privilege escalation.
Related CVEs
Other vulnerabilities affecting the same vendor(s)