CVE-2026-118030
CVE-2026-118030 · Keycloak-services: keycloak-services: hotp race condition allows single otp code reuse across concurrent logins
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A flaw was found in the HOTP authentication mechanism of the keycloak-services component, which provides identity and access management services. The issue occurs because the system validates a one-time password and updates its internal counter in two separate steps without proper locking. An attacker with a users password could exploit this timing gap to use a single one-time code to log in multiple times simultaneously.
CVSS 4.2 · Media · EPSS 0,2%
- Publicación
- Actualización
Productos y versiones afectados
red hat build of keycloak
Sin corrección publicada
red hat single sign-on 7
Sin corrección publicada