PT-2026-55091

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...

PT-2026-44196

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw in the ClientRegistrationAuth component allows a remote unauthenticated attacker to cause a Denial of Service DoS. By sending a specially crafted POST request with a malformed...

CVE-2026-9803: Out-of-bounds Read

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an...

CVE-2026-9801: Improper Validation of Specified Quantity in Input

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-2026-9795: Incorrect Privilege Assignment

A flaw was found in Keycloak's Fine-Grained Admin Permissions FGAPv2 feature. An administrator with limited client management permissions can exploit this vulnerability to assign any realm role, including highly privileged roles, to a client's scope mapping. This bypasses intended security...

CVE-2026-9802: Insufficient Session Expiration

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-2026-9794: Generation of Error Message Containing Sensitive Information

A flaw was found in Keycloak. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted SOAP requests to the SAML ECP Security Assertion Markup Language Enhanced Client or Proxy endpoint with varying client IDs. By observing distinct faultstrings in the...

CVE-2026-9792: Improper Handling of Insufficient Permissions or Privileges

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...

CVE-2026-9791: Incorrect Authorization

A flaw was found in Keycloak. An authenticated user with existing organization membership can exploit this flaw by accessing user-facing APIs, such as the account API or by requesting an OpenID Connect OIDC token with the 'organization' scope. This allows organization metadata to be disclosed in...

PT-2026-55148

A flaw was found in Keycloak. When a JSON Web Encryption JWE encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This allows a remote attacker to submit unauthorized claims, leadin...

CVE-2026-9796: Time-of-check Time-of-use (TOCTOU) Race Condition

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,...

Keycloak Vulnerable to Improper Validation of Specified Quantity in Input

A flaw was found in Keycloak. An authenticated user with low privileges can exploit this vulnerability by sending an oversized subjecttoken JSON Web Token JWT to the TokenEndpoint. When the token exceeds a 4000-character limit, it is silently dropped, causing the system to fall back to client...

org.keycloak:keycloak-authz-policy-common (3.1.0.cr1), org.keycloak:keycloak-authz-policy-drools (3.1.0.cr1) +11 more potentially affected by CVE-2026-9704 via org.keycloak:keycloak-server-spi-private (3.1.0.cr1)

org.keycloak:keycloak-server-spi-private MAVEN version 3.1.0.cr1 is affected by a known vulnerability. The following packages have a transitive dependency on org.keycloak:keycloak-server-spi-private and may be impacted: - org.keycloak:keycloak-authz-policy-common 3.1.0.cr1 -...

org.keycloak:keycloak-account-freemarker (1.5.1.final), org.keycloak:keycloak-broker-oidc (1.5.1.final) +8 more potentially affected by CVE-2026-9704 via org.keycloak:keycloak-services (1.5.1.final)

org.keycloak:keycloak-services MAVEN version 1.5.1.final is affected by a known vulnerability. The following packages have a transitive dependency on org.keycloak:keycloak-services and may be impacted: - org.keycloak:keycloak-account-freemarker 1.5.1.final - org.keycloak:keycloak-broker-oidc...

com.github.vzakharchenko:chillispot-radius-plugin (1.3.19), com.github.vzakharchenko:cisco-radius-plugin (1.3.19) +36 more potentially affected by CVE-2026-9704 via org.keycloak:keycloak-server-spi-private (16.1.1)

org.keycloak:keycloak-server-spi-private MAVEN version 16.1.1 is affected by a known vulnerability. The following packages have a transitive dependency on org.keycloak:keycloak-server-spi-private and may be impacted: - com.github.vzakharchenko:chillispot-radius-plugin 1.3.19 -...

com.github.vzakharchenko:chillispot-radius-plugin (>=1.4.0, <=1.4.2), com.github.vzakharchenko:cisco-radius-plugin (>=1.4.0, <=1.4.2) +34 more potentially affected by CVE-2026-9704 via org.keycloak:keycloak-server-spi-private (17.0.0)

org.keycloak:keycloak-server-spi-private MAVEN version 17.0.0 is affected by a known vulnerability. The following packages have a transitive dependency on org.keycloak:keycloak-server-spi-private and may be impacted: - com.github.vzakharchenko:chillispot-radius-plugin =1.4.0, =1.4.0, =1.4.0,...

com.github.vzakharchenko:chillispot-radius-plugin (1.4.5), com.github.vzakharchenko:cisco-radius-plugin (1.4.5) +38 more potentially affected by CVE-2026-9704 via org.keycloak:keycloak-server-spi-private (18.0.1)

org.keycloak:keycloak-server-spi-private MAVEN version 18.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on org.keycloak:keycloak-server-spi-private and may be impacted: - com.github.vzakharchenko:chillispot-radius-plugin 1.4.5 -...

com.github.vzakharchenko:chillispot-radius-plugin (1.3.16), com.github.vzakharchenko:cisco-radius-plugin (1.3.16) +32 more potentially affected by CVE-2026-9704 via org.keycloak:keycloak-server-spi-private (16.0.0)

org.keycloak:keycloak-server-spi-private MAVEN version 16.0.0 is affected by a known vulnerability. The following packages have a transitive dependency on org.keycloak:keycloak-server-spi-private and may be impacted: - com.github.vzakharchenko:chillispot-radius-plugin 1.3.16 -...

com.github.vzakharchenko:chillispot-radius-plugin (1.3.7), com.github.vzakharchenko:cisco-radius-plugin (1.3.7) +31 more potentially affected by CVE-2026-9704 via org.keycloak:keycloak-server-spi-private (13.0.1)

org.keycloak:keycloak-server-spi-private MAVEN version 13.0.1 is affected by a known vulnerability. The following packages have a transitive dependency on org.keycloak:keycloak-server-spi-private and may be impacted: - com.github.vzakharchenko:chillispot-radius-plugin 1.3.7 -...

com.github.vzakharchenko:keycloak-plugins (1.0.2), com.github.vzakharchenko:mikrotik-radius-plugin (1.0.2) +20 more potentially affected by CVE-2026-9704 via org.keycloak:keycloak-server-spi-private (8.0.2)

org.keycloak:keycloak-server-spi-private MAVEN version 8.0.2 is affected by a known vulnerability. The following packages have a transitive dependency on org.keycloak:keycloak-server-spi-private and may be impacted: - com.github.vzakharchenko:keycloak-plugins 1.0.2 -...