Vulnerability · Published Nov 5, 2026 · Assigned by redhat
CVE-2026-103112Keycloak-services: keycloak-services: account takeover via authentication race using reset-credentials path
High 7.5
In plain English
A high-severity race condition in Red Hat Build of Keycloak from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Official description
A flaw was found in the authentication session handling of the keycloak-services component in Keycloak. The issue occurs because the system fails to verify if an authenticator is valid for the current authentication flow when switching between the standard authentication path and the reset credentials path. An authenticated attacker can exploit this by triggering a race condition during the credential reset process to associate their successful authentication state with another user's session. This can result in the attacker gaining full access to the victim's account and changing their password.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Build of Keycloak | see references |
| Red Hat | Red Hat Build of Keycloak | see references |
| Red Hat | Red Hat Single Sign-On 7 | see references |
Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://access.redhat.com/security/cve/CVE-2026-103112 vdb-entry, x_refsource_REDHAT