GHSA-33j3-g875-37rp
Keycloak Vulnerable to Improper Handling of Insufficient Permissions or Privilege
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2026-9792
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Description
A flaw was found in Keycloak's Client Policies, specifically within the `org.keycloak.protocol.oidc` component. When certain condition providers (client-type, client-roles, client-attributes, client-scopes) are used to enforce security restrictions, the `reject-ropc-grant` executor is silently bypassed. This allows an unauthenticated remote attacker to obtain tokens via a Resource Owner Password Credentials (ROPC) grant, even when a policy is explicitly configured to block it. This bypass can lead to unauthorized access and information disclosure.
Paquets affectés
| Paquet | Versions |
|---|---|
| Maven · org.keycloak:keycloak-services | introduced 26.5.0, fixed 26.6.3 |
| Maven · org.keycloak:keycloak-services | introduced 0, last affected 26.4.7 |
Références
- https://nvd.nist.gov/vuln/detail/CVE-2026-9792 ADVISORY
- https://github.com/keycloak/keycloak/issues/49436 WEB
- https://github.com/keycloak/keycloak/pull/49636 WEB
- https://github.com/keycloak/keycloak/pull/49637 WEB
- https://github.com/keycloak/keycloak/commit/13622ee0ffed91fd07ef444be2c858a7f356766d WEB
- https://github.com/keycloak/keycloak/commit/2af73c16a4e49333779bb34bce65461d9af036a4 WEB
- https://github.com/keycloak/keycloak/commit/af5e3e8c60842bc1f3a78e6be414fe303f93163d 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-2026-9792 WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2482459 WEB
- https://github.com/keycloak/keycloak PACKAGE
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |