CVE-2026-19607
5.3 MEDIUMPublished 2026-09-16 · Updated 2026-09-16
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
A flaw was found in the first-broker-login flow of the keycloak-services component. This component handles the initial authentication and account linking when a user logs in via an external identity provider. The issue allows an attacker to register a matching username on an external provider to trigger a collision in Keycloak, which results in the legitimate user being locked out of their account.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-287
References
Data: NVD (public domain). Analysis: local $0 model. Defensive use only.