CVE-2026-9083 Keycloak: keycloak: information disclosure through arbitrary filesystem path probing
A realm administrator can probe arbitrary filesystem paths via keystore parameters, disclosing file existence and readability to identify targets for further attacks.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-9083?
CVE-2026-9083 is a medium-severity path traversal vulnerability in Redhat Build of Keycloak, published on 25 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw was found in Keycloak. A realm administrator with the "manage-realm" role can exploit this vulnerability by submitting an arbitrary filesystem path as a keystore parameter when creating a key provider component. This allows the administrator to probe arbitrary filesystem paths, determining which files exist and are readable by the Keycloak process. This information disclosure could be used to identify high-value targets for follow-on attacks.
Weakness: CWE-22
Which versions are affected by CVE-2026-9083?
3 open source packages ship an affected version, including org.keycloak:keycloak-services and keycloak. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.keycloak:keycloak-services Maven | All versions | 26.6.4 |
org.keycloak:keycloak-services Maven | All versions | 26.6.4 |
keycloak Bitnami | From 26.4.0 | 26.4.13, 26.6.4 |
Products include Redhat Build of Keycloak.
How do I fix CVE-2026-9083?
Upgrade org.keycloak:keycloak-services to 26.6.4 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-9083 being exploited?
There is no known exploitation of CVE-2026-9083 in the wild and no public exploit code.
Other vulnerabilities in Redhat Build of Keycloak
- CVE-2026-15572 Keycloak-services: keycloak-services: dcr protocol mapper type-swap policy bypass allows privilege escalation
- CVE-2026-3047 Keycloak SAML Broken has Authentication Bypass by Primary Weakness
- CVE-2026-15573 Keycloak-services: keycloak-services: authorization bypass via unnormalized uri matching in pathmatcher
- CVE-2026-16102 Keycloak-services: keycloak-services: default dcr policy allows role forgery via user property mappers
- CVE-2026-1609 Org.keycloak/keycloak-quarkus-server: keycloak: unauthorized access via jwt authorization grant with disabled users
Sources
Also known as BIT-keycloak-2026-9083, GHSA-9jrw-8xf7-xqhq.