CVE-2026-9802 Keycloak: keycloak: unauthorized account access via replayed refresh tokens after cluster restart

A flaw was found in Keycloak. When revokeRefreshToken=true is enabled and persistent session storage is in use, a server restart can reset internal timing mechanisms. This allows a remote attacker, who has previously captured a user's refresh token, to replay that token even after it has been...

CVE-2026-9802 Keycloak: keycloak: unauthorized account access via replayed refresh tokens after cluster restart

A flaw was found in Keycloak. When revokeRefreshToken=true is enabled and persistent session storage is in use, a server restart can reset internal timing mechanisms. This allows a remote attacker, who has previously captured a user's refresh token, to replay that token even after it has been...

CVE-2026-9803

CVE-2026-9803 describes a denial-of-service flaw in Keycloak’s ClientRegistrationAuth component. A remote, unauthenticated attacker can trigger an ArrayIndexOutOfBoundsException by sending a specially crafted POST request with a malformed Authorization: Bearer header to any client registration en...

CVE-2026-9801

CVE-2026-9801 affects Keycloak. A remote attacker with high privileges (e.g., a realm administrator configuring a malicious LDAP server or compromising an upstream LDAP server) can trigger an OutOfMemoryError by sending a malformed LDAP password policy response during authentication, causing the ...

CVE-2026-9801 Keycloak: keycloak: denial of service via malformed ldap password policy response

A flaw was found in Keycloak. A remote attacker with high privileges, such as a realm administrator configuring a malicious Lightweight Directory Access Protocol LDAP server or an attacker compromising an upstream LDAP server, could exploit this vulnerability. By sending a malformed LDAP password...

CVE-2026-9801 Keycloak: keycloak: denial of service via malformed ldap password policy response

A flaw was found in Keycloak. A remote attacker with high privileges, such as a realm administrator configuring a malicious Lightweight Directory Access Protocol LDAP server or an attacker compromising an upstream LDAP server, could exploit this vulnerability. By sending a malformed LDAP password...

EUVD-2026-32718

A flaw was found in Keycloak. A remote attacker with high privileges, such as a realm administrator configuring a malicious Lightweight Directory Access Protocol LDAP server or an attacker compromising an upstream LDAP server, could exploit this vulnerability. By sending a malformed LDAP password...

CVE-2026-9801

A flaw was found in Keycloak. A remote attacker with high privileges, such as a realm administrator configuring a malicious Lightweight Directory Access Protocol LDAP server or an attacker compromising an upstream LDAP server, could exploit this vulnerability. By sending a malformed LDAP password...

CVE-2026-9801

A flaw was found in Keycloak. A remote attacker with high privileges, such as a realm administrator configuring a malicious Lightweight Directory Access Protocol LDAP server or an attacker compromising an upstream LDAP server, could exploit this vulnerability. By sending a malformed LDAP password...

CVE-2026-9798

Keycloak is affected by a flaw where, after a user account is temporarily locked due to repeated failed logins, an attacker with valid client credentials can abuse the Client-Initiated Backchannel Authentication (CIBA) flow to bypass the lock. This allows continued authentication attempts and tok...

CVE-2026-9798 Keycloak: keycloak: brute-force protection bypass in ciba flow

A flaw was found in Keycloak, an open-source identity and access management solution. When a user account is temporarily locked due to repeated failed login attempts, an attacker with valid client credentials can exploit the Client-Initiated Backchannel Authentication CIBA flow to bypass this...

CVE-2026-9798

A flaw was found in Keycloak, an open-source identity and access management solution. When a user account is temporarily locked due to repeated failed login attempts, an attacker with valid client credentials can exploit the Client-Initiated Backchannel Authentication CIBA flow to bypass this...

EUVD-2026-32717

A flaw was found in Keycloak, an open-source identity and access management solution. When a user account is temporarily locked due to repeated failed login attempts, an attacker with valid client credentials can exploit the Client-Initiated Backchannel Authentication CIBA flow to bypass this...

CVE-2026-9798

A flaw was found in Keycloak, an open-source identity and access management solution. When a user account is temporarily locked due to repeated failed login attempts, an attacker with valid client credentials can exploit the Client-Initiated Backchannel Authentication CIBA flow to bypass this...

CVE-2026-9798 Keycloak: keycloak: brute-force protection bypass in ciba flow

A flaw was found in Keycloak, an open-source identity and access management solution. When a user account is temporarily locked due to repeated failed login attempts, an attacker with valid client credentials can exploit the Client-Initiated Backchannel Authentication CIBA flow to bypass this...

CVE-2026-9796

This CVE (CVE-2026-9796) affects Keycloak. An authenticated administrator with the manage-clients role can trigger a TOCTOU flaw in the name-based admin role checks, allowing escalation to realm-admin for all users in the realm. The compromised composite role relationship persists after the attac...

CVE-2026-9796 Keycloak: keycloak: privilege escalation via time-of-check to time-of-use (toctou) vulnerability

A flaw was found in Keycloak. An authenticated administrator with the manage-clients role can exploit a Time-of-check to time-of-use TOCTOU vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to realm-admin for all users within the realm,...

CVE-2026-9796

A flaw was found in Keycloak. An authenticated administrator with the manage-clients role can exploit a Time-of-check to time-of-use TOCTOU vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to realm-admin for all users within the realm,...

CVE-2026-9796

A flaw was found in Keycloak. An authenticated administrator with the manage-clients role can exploit a Time-of-check to time-of-use TOCTOU vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to realm-admin for all users within the realm,...

EUVD-2026-32716

A flaw was found in Keycloak. An authenticated administrator with the manage-clients role can exploit a Time-of-check to time-of-use TOCTOU vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to realm-admin for all users within the realm,...