CVE-2026-9791
Fixed upstream EPSS <1%CVSS 4.3
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.
Products: Red Hat build of Keycloak 26.4, Red Hat build of Keycloak 26.4.13, Red Hat build of Keycloak 26.6, Red Hat build of Keycloak 26.6.3
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | org.keycloak:keycloak-server-spi-private | 26.6.3 |
| Maven | org.keycloak:keycloak-server-spi-private | no fix |
| Maven | org.keycloak:keycloak-services | 26.6.3 |
| Maven | org.keycloak:keycloak-services | no fix |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | keycloak-26.4 | no fix |
| Chainguard | keycloak-26.4-iamguarded-compat | no fix |
| Chainguard | keycloak-26.5 | no fix |
| Chainguard | keycloak-26.5-iamguarded-compat | no fix |
| Chainguard | keycloak-fips-26.4 | no fix |
| Chainguard | keycloak-fips-26.4-iamguarded-fips | no fix |
| Chainguard | keycloak-fips-26.5 | no fix |
| Chainguard | keycloak-fips-26.5-iamguarded-fips | no fix |
| Chainguard | request-9047-keycloak-fips-26.4 | no fix |
| Chainguard | request-9047-keycloak-fips-26.4-iamguarded-fips | no fix |
| Chainguard | request-9047-keycloak-fips-26.5 | no fix |
| Chainguard | request-9047-keycloak-fips-26.5-iamguarded-fips | no fix |
| Wolfi | keycloak-26.4 | no fix |
| Wolfi | keycloak-26.4-iamguarded-compat | no fix |
| Wolfi | keycloak-26.5 | no fix |
| Wolfi | keycloak-26.5-iamguarded-compat | no fix |