CVE-2026-9705Medium· 6.5▾ SunlitKeycloak: Attacker can re-enable and take over disabled clients via registration access token
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via GHSA
0.5%
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.
org.keycloak:keycloak-services < 26.6.4Upgrade to a patched release:
org.keycloak:keycloak-services 26.6.4Connected by shared product, vendor, weakness, or advisory.
GHSA-q929-g23j-2rc7Medium· 6.5Duplicate Advisory: Keycloak: Attacker can re-enable and take over disabled clients via registration access token
CVE-2026-9799Medium· 4.6Keycloak allows unauthorized access to resources via uma permission ticket bypass
GHSA-7pm9-g8jh-3m74Medium· 4.9Duplicate Advisory: Keycloak vulnerable to information disclosure through arbitrary filesystem path probing
CVE-2026-9083Medium· 4.9Keycloak vulnerable to information disclosure through arbitrary filesystem path probing
CVE-2026-9086High· 7.3Keycloak vulnerable to cross-site scripting (xss) via case-insensitive uri validation bypass
GHSA-37j9-56gh-j2r7High· 7.3Duplicate Advisory: Keycloak vulnerable to cross-site scripting (xss) via case-insensitive uri validation bypass