CVE-2025-12110 Keycloak does not invalidate offline sessions when the offline_access scope is removed
Attackers can maintain access via offline sessions even after administrators remove the offline_access scope from a client configuration.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-12110?
CVE-2025-12110 is a medium-severity vulnerability in Red Hat build of Keycloak 26.2, published on 23 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in Keycloak. An offline session continues to be valid when the offline_access scope is removed from the client. The refresh token is accepted and you can continue to request new tokens for the session. As it can lead to a situation where an administrator removes the scope, and assumes that offline sessions are no longer available, but they are.
Weakness: CWE-613
Which versions are affected by CVE-2025-12110?
2 open source packages ship an affected version, including org.keycloak:keycloak-services.
| Package | Affected | Fixed in |
|---|---|---|
org.keycloak:keycloak-services Maven | All versions | 26.2.3 |
org.keycloak:keycloak-services Maven | All versions | 26.2.3 |
How do I fix CVE-2025-12110?
Upgrade org.keycloak:keycloak-services to 26.2.3 or later.
Is CVE-2025-12110 being exploited?
There is no known exploitation of CVE-2025-12110 in the wild and no public exploit code.
Sources
Also known as ECHO-6fb2-4b82-1991, GHSA-895x-rfqp-jh5c, MINI-9c7w-jxp3-vj6g.