6.5

CVE-2026-9705

Keycloak: keycloak: attacker can re-enable and take over disabled clients via registration access token

Attacker can re-enable and take over disabled clients via registration access token

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.
Mögliche Gegenmaßnahme
Keycloak Server: Install latest version
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
RedhatBuild Of Keycloak Version >= 26.4 < 26.4.13
RedhatBuild Of Keycloak Version >= 26.6 < 26.6.4
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Weitere Schwachstelleninformationen
SystemKeycloak
Produkt Keycloak Server
Version < 26.6.4
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.27% 0.184
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 6.5 3.9 2.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE-613 Insufficient Session Expiration

According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."

https://access.redhat.com/security/cve/CVE-2026-9705
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2481878
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:30083
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:30084
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:30049
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:30050
Vendor Advisory
https://github.com/keycloak/keycloak/security/advisories/GHSA-r7rc-c989-86g6
Third Party Advisory