GHSA-r7rc-c989-86g6
Keycloak: Attacker can re-enable and take over disabled clients via registration access token
At a glance
- Published
- Updated
- CVE
- CVE-2026-9705
- Aliases
- BIT-keycloak-2026-9705
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Description
### Description A flaw was found in Keycloak's client registration service. A remote attacker, possessing a previously issued Registration Access Token (RAT), could exploit this vulnerability to re-enable a client that an administrator had explicitly disabled. This bypasses security controls, allowing the attacker to reset the client's secret and potentially regain privileged API access. The primary impact includes unauthorized information disclosure and potential integrity compromise.
Affected packages
| Package | Versions |
|---|---|
| Maven · org.keycloak:keycloak-services | introduced 0, fixed 26.6.4 |
References
- https://github.com/keycloak/keycloak/security/advisories/GHSA-r7rc-c989-86g6 WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-9705 ADVISORY
- https://access.redhat.com/errata/RHSA-2026:30049 WEB
- https://access.redhat.com/errata/RHSA-2026:30050 WEB
- https://access.redhat.com/errata/RHSA-2026:30083 WEB
- https://access.redhat.com/errata/RHSA-2026:30084 WEB
- https://access.redhat.com/security/cve/CVE-2026-9705 WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2481878 WEB
- https://github.com/keycloak/keycloak PACKAGE
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |