Privilege Escalation

Keycloak is vulnerable to Improper Authorization. The vulnerability is due to the Dynamic Client Registration policy failing to re-validate protocol mapper types during client updates, allowing an attacker with client registration privileges to replace an allowed mapper with a restricted...

Authentication Bypass

Keycloak is vulnerable to an authentication bypass. The vulnerability is due to missing brute-force protection validation in the CIBA token redemption handler, which allows an attacker with valid client credentials to obtain access and refresh tokens for a user whose account was locked after the...

Authorization Bypass

Keycloak is vulnerable to Authorization Bypass. The vulnerability is due to the token exchange feature ignoring tenant restrictions, where the restriction check is bypassed and an attacker with a valid Microsoft token from a different organization can gain access to the Keycloak realm...

Token Revocation Bypass

Keycloak is vulnerable to a token revocation bypass vulnerability. The vulnerability is due to an application-specific “not-before” token revocation policy being silently ignored when an older, non-zero realm-level policy exists, which allows an attacker to continue using previously issued tokens...

Improper Authorization

keycloak-services is vulnerable to an improper authorization. The vulnerability is due to insufficient permission checks when a restricted administrator lists users assigned to a role, which allows an attacker with limited administrative privileges to exploit the role-users endpoint and access...

Exploit for CVE-2026-18963

CVE-2026-18963 — Keycloak Unauthenticated Account Takeover...

Exploit for CVE-2026-18963

CVE-2026-18963 Keycloak reset-credentials bypass → unauthent...

Exploit for CVE-2026-18963

CVE-2026-18963 Keycloak reset-credentials bypass → unauthenti...

Exploit for CVE-2026-18963

CVE-2026-18963 — Lab tái dựng lại Keycloak reset-credentials...

PT-2026-81990

A vulnerability was found in Keycloak. This flaw allows attackers to bypass brute force protection by exploiting the timing of login attempts. By initiating multiple login requests simultaneously, attackers can exceed the configured limits for failed attempts before the system locks them out. Thi...

CVE-2026-79652: Missing Authorization

A flaw was found in the JWT Bearer authorization grant implementation within the keycloak-services component of Red Hat Build of Keycloak. This component handles various OAuth2 and OpenID Connect grant types used for issuing access tokens. The issue occurs because the JWT Bearer grant fails to...

PT-2026-81265

Name of the Vulnerable Software and Affected Versions Red Hat Build of Keycloak affected versions not specified Description A flaw exists in the JWT Bearer authorization grant implementation within the keycloak-services component, which manages OAuth2 and OpenID Connect grant types for access tok...

VulnCheck KEV: CVE-2026-18963

A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the...

Exploit for CVE-2026-18963

CVE-2026-18963 — Keycloak Reset-Credentials Bypass → Account T...

Missing Authorization

Keycloak is vulnerable to Missing Authorization. The vulnerability is due to improper filtering of token claims in signed JWT introspection responses for tokens issued to a different audience, which allows an unauthorized client to bypass audience restrictions and access sensitive token informati...

CVE-2025-68833

HCL Hive Keycloak IAM Instance is affected by insufficient granularity of access control which could allow an attacker unauthorized access to resources...

Sensitive Information Disclosure

Keycloak is vulnerable to Sensitive Information Disclosure. The vulnerability is due to improper authorization when retrieving rotated client secrets stored in a secure vault, which allows a delegated administrator with view-only permissions to obtain the actual secret instead of the vault...

CVE-2025-68833

HCL Hive Keycloak IAM Instance is affected by insufficient granularity of access control , which could allow an unauthenticated, remote attacker to gain unauthorized access to resources . The CVSS 3.1 score is 5.3 (Medium) , reflecting a network attack vector with low complexity, no privileges or...

EUVD-2025-210762

HCL Hive Keycloak IAM Instance is affected by insufficient granularity of access control which could allow an attacker unauthorized access to resources...

CVE-2025-68833 HCL Hive is affected by use of a cryptographic primitive with a risky implementation

HCL Hive Keycloak IAM Instance is affected by insufficient granularity of access control which could allow an attacker unauthorized access to resources...