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35 vulnerabilities found for Red Hat build of Keycloak 26.4 by Red Hat
CVE-2026-4636 (GCVE-0-2026-4636)
Vulnerability from cvelistv5
Published
2026-04-02 12:45
Modified
2026-04-02 16:35
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
Summary
A flaw was found in Keycloak. An authenticated user with the uma_protection role can bypass User-Managed Access (UMA) policy validation. This allows the attacker to include resource identifiers owned by other users in a policy creation request, even if the URL path specifies an attacker-owned resource. Consequently, the attacker gains unauthorized permissions to victim-owned resources, enabling them to obtain a Requesting Party Token (RPT) and access sensitive information or perform unauthorized actions.
References
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Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected: 26.2.15-1 < * cpe:/a:redhat:build_keycloak:26.2::el9 |
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CVE-2026-4634 (GCVE-0-2026-4634)
Vulnerability from cvelistv5
Published
2026-04-02 12:44
Modified
2026-04-03 17:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1050 - Excessive Platform Resource Consumption within a Loop
Summary
A flaw was found in Keycloak. An unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with an excessively long scope parameter to the OpenID Connect (OIDC) token endpoint. This leads to high resource consumption and prolonged processing times, ultimately resulting in a Denial of Service (DoS) for the Keycloak server.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected: 26.2.15-1 < * cpe:/a:redhat:build_keycloak:26.2::el9 |
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|
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CVE-2026-4325 (GCVE-0-2026-4325)
Vulnerability from cvelistv5
Published
2026-04-02 12:44
Modified
2026-04-07 11:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-653 - Improper Isolation or Compartmentalization
Summary
A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an attacker to delete arbitrary single-use entries, which can enable the replay of consumed action tokens, such as password reset links. This could lead to unauthorized access or account compromise.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected: 26.2.15-1 < * cpe:/a:redhat:build_keycloak:26.2::el9 |
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|
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CVE-2026-4282 (GCVE-0-2026-4282)
Vulnerability from cvelistv5
Published
2026-04-02 12:44
Modified
2026-04-07 11:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-653 - Improper Isolation or Compartmentalization
Summary
A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an unauthenticated attacker to forge authorization codes. Successful exploitation can lead to the creation of admin-capable access tokens, resulting in privilege escalation.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected: 26.2.15-1 < * cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
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CVE-2026-3872 (GCVE-0-2026-3872)
Vulnerability from cvelistv5
Published
2026-04-02 12:37
Modified
2026-04-07 14:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Summary
A flaw was found in Keycloak. This issue allows an attacker, who controls another path on the same web server, to bypass the allowed path in redirect Uniform Resource Identifiers (URIs) that use a wildcard. A successful attack may lead to the theft of an access token, resulting in information disclosure.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected: 26.2.15-1 < * cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
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CVE-2026-3121 (GCVE-0-2026-3121)
Vulnerability from cvelistv5
Published
2026-03-26 19:13
Modified
2026-04-02 16:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-266 - Incorrect Privilege Assignment
Summary
A flaw was found in Keycloak. An administrator with `manage-clients` permission can exploit a misconfiguration where this permission is equivalent to `manage-permissions`. This allows the administrator to escalate privileges and gain control over roles, users, or other administrative functions within the realm. This privilege escalation can occur when admin permissions are enabled at the realm level.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.11-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2026-3190 (GCVE-0-2026-3190)
Vulnerability from cvelistv5
Published
2026-03-26 19:12
Modified
2026-04-02 16:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-280 - Improper Handling of Insufficient Permissions or Privileges
Summary
A flaw was found in Keycloak. The User-Managed Access (UMA) 2.0 Protection API endpoint for permission tickets fails to enforce the `uma_protection` role check. This allows any authenticated user with a token issued for a resource server client, even without the `uma_protection` role, to enumerate all permission tickets in the system. This vulnerability partial leads to information disclosure.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.11-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2026-2575 (GCVE-0-2026-2575)
Vulnerability from cvelistv5
Published
2026-03-18 03:19
Modified
2026-03-18 13:34
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Summary
A flaw was found in Keycloak. An unauthenticated remote attacker can trigger an application level Denial of Service (DoS) by sending a highly compressed SAMLRequest through the SAML Redirect Binding. The server fails to enforce size limits during DEFLATE decompression, leading to an OutOfMemoryError (OOM) and subsequent process termination. This vulnerability allows an attacker to disrupt the availability of the service.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.10-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2026-2603 (GCVE-0-2026-2603)
Vulnerability from cvelistv5
Published
2026-03-18 01:14
Modified
2026-03-18 14:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-306 - Missing Authentication for Critical Function
Summary
A flaw was found in Keycloak. A remote attacker could bypass security controls by sending a valid SAML response from an external Identity Provider (IdP) to the Keycloak SAML endpoint for IdP-initiated broker logins. This allows the attacker to complete broker logins even when the SAML Identity Provider is disabled, leading to unauthorized authentication.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected: 26.2.14-1 < * cpe:/a:redhat:build_keycloak:26.2::el9 |
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CVE-2026-2092 (GCVE-0-2026-2092)
Vulnerability from cvelistv5
Published
2026-03-18 01:14
Modified
2026-03-18 14:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Summary
A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. This allows the attacker to inject an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected: 26.2.14-1 < * cpe:/a:redhat:build_keycloak:26.2::el9 |
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CVE-2026-2366 (GCVE-0-2026-2366)
Vulnerability from cvelistv5
Published
2026-03-12 10:54
Modified
2026-04-02 16:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Summary
A flaw was found in Keycloak. An authorization bypass vulnerability in the Keycloak Admin API allows any authenticated user, even those without administrative privileges, to enumerate the organization memberships of other users. This information disclosure occurs if the attacker knows the victim's unique identifier (UUID) and the Organizations feature is enabled.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.11-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
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CVE-2026-3429 (GCVE-0-2026-3429)
Vulnerability from cvelistv5
Published
2026-03-11 16:17
Modified
2026-04-02 16:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-284 - Improper Access Control
Summary
A flaw was identified in the Account REST API of Keycloak that allows a user authenticated at a lower security level to perform sensitive actions intended only for higher-assurance sessions. Specifically, an attacker who has already obtained a victim’s password can delete the victim’s registered MFA/OTP credential without first proving possession of that factor. The attacker can then register their own MFA device, effectively taking full control of the account. This weakness undermines the intended protection provided by multi-factor authentication.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.11-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
||||||||||||||||||||||||||||||||||||||||||
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CVE-2026-3911 (GCVE-0-2026-3911)
Vulnerability from cvelistv5
Published
2026-03-11 05:36
Modified
2026-04-02 16:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-359 - Exposure of Private Personal Information to an Unauthorized Actor
Summary
A flaw was found in Keycloak. An authenticated user with the view-users role could exploit a vulnerability in the UserResource component. By accessing a specific administrative endpoint, this user could improperly retrieve user attributes that were configured to be hidden. This unauthorized information disclosure could expose sensitive user data.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.11-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2026-3047 (GCVE-0-2026-3047)
Vulnerability from cvelistv5
Published
2026-03-05 18:28
Modified
2026-03-06 18:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Summary
A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected: 26.2.14-1 < * cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
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CVE-2026-3009 (GCVE-0-2026-3009)
Vulnerability from cvelistv5
Published
2026-03-05 18:27
Modified
2026-03-24 11:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-863 - Incorrect Authorization
Summary
A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can reuse a previously generated login request to bypass the administrative restriction. This undermines access control enforcement and may allow unauthorized authentication through a disabled external provider.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.10-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2025-12150 (GCVE-0-2025-12150)
Vulnerability from cvelistv5
Published
2026-02-27 08:10
Modified
2026-03-06 18:46
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Summary
A flaw was found in Keycloak’s WebAuthn registration component. This vulnerability allows an attacker to bypass the configured attestation policy and register untrusted or forged authenticators via submission of an attestation object with fmt: "none", even when the realm is configured to require direct attestation. This can lead to weakened authentication integrity and unauthorized authenticator registration.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Keycloak | keycloak |
Version: 0 ≤ |
||||||||||||||||||||||||||||||||||||||||||
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CVE-2026-0871 (GCVE-0-2026-0871)
Vulnerability from cvelistv5
Published
2026-02-27 07:30
Modified
2026-03-06 18:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-266 - Incorrect Privilege Assignment
Summary
A flaw was found in Keycloak. An administrator with `manage-users` permission can bypass the "Only administrators can view" setting for unmanaged attributes, allowing them to modify these attributes. This improper access control can lead to unauthorized changes to user profiles, even when the system is configured to restrict such modifications.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.9-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2026-2733 (GCVE-0-2026-2733)
Vulnerability from cvelistv5
Published
2026-02-19 07:48
Modified
2026-03-06 03:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-285 - Improper Authorization
Summary
A flaw was identified in the Docker v2 authentication endpoint of Keycloak, where tokens continue to be issued even after a Docker registry client has been administratively disabled. This means that turning the client “Enabled” setting to OFF does not fully prevent access. As a result, previously valid credentials can still be used to obtain authentication tokens. This weakens administrative controls and could allow unintended access to container registry resources.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.10-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2025-14778 (GCVE-0-2025-14778)
Vulnerability from cvelistv5
Published
2026-02-09 18:58
Modified
2026-02-10 01:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-266 - Incorrect Privilege Assignment
Summary
A flaw was found in Keycloak. A significant Broken Access Control vulnerability exists in the UserManagedPermissionService (UMA Protection API). When updating or deleting a UMA policy associated with multiple resources, the authorization check only verifies the caller's ownership against the first resource in the policy's list. This allows a user (Owner A) who owns one resource (RA) to update a shared policy and modify authorization rules for other resources (e.g., RB) in that same policy, even if those other resources are owned by a different user (Owner B). This constitutes a horizontal privilege escalation.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected: 26.2.13-1 < * cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
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CVE-2026-1529 (GCVE-0-2026-1529)
Vulnerability from cvelistv5
Published
2026-02-09 18:36
Modified
2026-02-16 21:45
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Summary
A flaw was found in Keycloak. An attacker can exploit this vulnerability by modifying the organization ID and target email within a legitimate invitation token's JSON Web Token (JWT) payload. This lack of cryptographic signature verification allows the attacker to successfully self-register into an unauthorized organization, leading to unauthorized access.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected: 26.2.13-1 < * cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
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CVE-2026-1486 (GCVE-0-2026-1486)
Vulnerability from cvelistv5
Published
2026-02-09 18:36
Modified
2026-02-10 01:00
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-358 - Improperly Implemented Security Check for Standard
Summary
A flaw was found in Keycloak. A vulnerability exists in the jwt-authorization-grant flow where the server fails to verify if an Identity Provider (IdP) is enabled before issuing tokens. The issuer lookup mechanism (lookupIdentityProviderFromIssuer) retrieves the IdP configuration but does not filter for isEnabled=false. If an administrator disables an IdP (e.g., due to a compromise or offboarding), an entity possessing that IdP's signing key can still generate valid JWT assertions that Keycloak accepts, resulting in the issuance of valid access tokens.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.9-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2025-13881 (GCVE-0-2025-13881)
Vulnerability from cvelistv5
Published
2026-02-02 05:43
Modified
2026-02-10 01:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-266 - Incorrect Privilege Assignment
Summary
A flaw was found in Keycloak Admin API. This vulnerability allows an administrator with limited privileges to retrieve sensitive custom attributes via the /unmanagedAttributes endpoint, bypassing User Profile visibility settings.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.9-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2026-1190 (GCVE-0-2026-1190)
Vulnerability from cvelistv5
Published
2026-01-26 19:36
Modified
2026-03-06 03:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-112 - Missing XML Validation
Summary
A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language (SAML) setup, it fails to validate the `NotOnOrAfter` timestamp within the `SubjectConfirmationData`. This allows an attacker to delay the expiration of SAML responses, potentially extending the time a response is considered valid and leading to unexpected session durations or resource consumption.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.10-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2025-14083 (GCVE-0-2025-14083)
Vulnerability from cvelistv5
Published
2026-01-21 12:04
Modified
2026-04-02 16:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-284 - Improper Access Control
Summary
A flaw was found in the Keycloak Admin REST API. This vulnerability allows the exposure of backend schema and rules, potentially leading to targeted attacks or privilege escalation via improper access control.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.11-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2025-14559 (GCVE-0-2025-14559)
Vulnerability from cvelistv5
Published
2026-01-21 06:13
Modified
2026-02-10 01:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw was found in the keycloak-services component of Keycloak. This vulnerability allows the issuance of access and refresh tokens for disabled users, leading to unauthorized use of previously revoked privileges, via a business logic vulnerability in the Token Exchange implementation when a privileged client invokes the token exchange flow.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.9-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2026-1035 (GCVE-0-2026-1035)
Vulnerability from cvelistv5
Published
2026-01-21 05:52
Modified
2026-04-02 16:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Summary
A flaw was found in the Keycloak server during refresh token processing, specifically in the TokenManager class responsible for enforcing refresh token reuse policies. When strict refresh token rotation is enabled, the validation and update of refresh token usage are not performed atomically. This allows concurrent refresh requests to bypass single-use enforcement and issue multiple access tokens from the same refresh token. As a result, Keycloak’s refresh token rotation hardening can be undermined.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.11-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2026-1180 (GCVE-0-2026-1180)
Vulnerability from cvelistv5
Published
2026-01-20 12:33
Modified
2026-04-02 16:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Summary
A flaw was identified in Keycloak’s OpenID Connect Dynamic Client Registration feature when clients authenticate using private_key_jwt. The issue allows a client to specify an arbitrary jwks_uri, which Keycloak then retrieves without validating the destination. This enables attackers to coerce the Keycloak server into making HTTP requests to internal or restricted network resources. As a result, attackers can probe internal services and cloud metadata endpoints, creating an information disclosure and reconnaissance risk.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.11-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2026-0707 (GCVE-0-2026-0707)
Vulnerability from cvelistv5
Published
2026-01-08 03:41
Modified
2026-03-06 03:17
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
Summary
A flaw was found in Keycloak. The Keycloak Authorization header parser is overly permissive regarding the formatting of the "Bearer" authentication scheme. It accepts non-standard characters (such as tabs) as separators and tolerates case variations that deviate from RFC 6750 specifications.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.10-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2025-14777 (GCVE-0-2025-14777)
Vulnerability from cvelistv5
Published
2025-12-16 05:02
Modified
2026-04-02 16:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-289 - Authentication Bypass by Alternate Name
Summary
A flaw was found in Keycloak. An IDOR (Broken Access Control) vulnerability exists in the admin API endpoints for authorization resource management, specifically in ResourceSetService and PermissionTicketService. The system checks authorization against the resourceServer (client) ID provided in the API request, but the backend database lookup and modification operations (findById, delete) only use the resourceId. This mismatch allows an authenticated attacker with fine-grained admin permissions for one client (e.g., Client A) to delete or update resources belonging to another client (Client B) within the same realm by supplying a valid resource ID.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.11-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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CVE-2025-14082 (GCVE-0-2025-14082)
Vulnerability from cvelistv5
Published
2025-12-10 09:04
Modified
2026-04-02 16:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-284 - Improper Access Control
Summary
A flaw was found in Keycloak Admin REST (Representational State Transfer) API. This vulnerability allows information disclosure of sensitive role metadata via insufficient authorization checks on the /admin/realms/{realm}/roles endpoint.
References
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Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected: 26.4.11-1 < * cpe:/a:redhat:build_keycloak:26.4::el9 |
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