GHSA-4q93-v92x-p89f
Keycloak Vulnerable to Incorrect Authorization
Details
A flaw was found in Keycloak. An authenticated user with existing organization membership can exploit this flaw by accessing user-facing APIs, such as the account API or by requesting an OpenID Connect (OIDC) token with the 'organization' scope. This allows organization metadata to be disclosed in tokens, even after an administrator has explicitly disabled the Organizations feature, potentially leading to incorrect authorization decisions by resource servers.
Are you affected?
Enter the version of the package you're using.
Affected packages
26.5.0 Fixed in: 26.6.3 # pom.xml: bump <version>26.6.3</version> for org.keycloak:keycloak-server-spi-private 26.5.0 Fixed in: 26.6.3 # pom.xml: bump <version>26.6.3</version> for org.keycloak:keycloak-services 0 No fixed version published yet for org.keycloak:keycloak-server-spi-private (maven). Pin to a known-safe version or switch to an alternative.
0 No fixed version published yet for org.keycloak:keycloak-services (maven). Pin to a known-safe version or switch to an alternative.
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-9791 [ADVISORY]
- https://github.com/keycloak/keycloak/issues/49431 [WEB]
- https://github.com/keycloak/keycloak/pull/49541 [WEB]
- https://github.com/keycloak/keycloak/pull/49678 [WEB]
- https://github.com/keycloak/keycloak/pull/49680 [WEB]
- https://github.com/keycloak/keycloak/commit/0e706e7c83d1e971b48656ad9e674eec6adc225b [WEB]
- https://github.com/keycloak/keycloak/commit/a77c60f2f3e0793046add44120579871e92553df [WEB]
- https://github.com/keycloak/keycloak/commit/f19e1f2b4e998116d4e321f50ecf99c0f87b862f [WEB]
- https://access.redhat.com/errata/RHSA-2026:25097 [WEB]
- https://access.redhat.com/errata/RHSA-2026:25098 [WEB]
- https://access.redhat.com/errata/RHSA-2026:30049 [WEB]
- https://access.redhat.com/errata/RHSA-2026:30050 [WEB]
- https://access.redhat.com/security/cve/CVE-2026-9791 [WEB]
- https://bugzilla.redhat.com/show_bug.cgi?id=2482458 [WEB]
- https://github.com/keycloak/keycloak [PACKAGE]