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70 vulnerabilities found for Red Hat build of Keycloak 26.4 by Red Hat
CVE-2026-4636 (GCVE-0-2026-4636)
Vulnerability from nvd – Published: 2026-04-02 12:45 – Updated: 2026-04-02 16:35
VLAI?
Title
Keycloak: keycloak: uma policy bypass allows authenticated users to gain unauthorized access to victim-owned resources.
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.
Severity ?
8.1 (High)
CWE
- CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.15-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-04-02 12:30
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CVE-2026-4634 (GCVE-0-2026-4634)
Vulnerability from nvd – Published: 2026-04-02 12:44 – Updated: 2026-04-03 17:23
VLAI?
Title
Keycloak: keycloak: denial of service via excessive processing of openid connect scope parameters
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.
Severity ?
7.5 (High)
CWE
- CWE-1050 - Excessive Platform Resource Consumption within a Loop
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.15-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-04-02 12:30
Credits
Red Hat would like to thank Slvrqn for reporting this issue.
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CVE-2026-4325 (GCVE-0-2026-4325)
Vulnerability from nvd – Published: 2026-04-02 12:44 – Updated: 2026-04-07 11:27
VLAI?
Title
Keycloak: keycloak: replay of action tokens via improper handling of single-use entries
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.
Severity ?
5.3 (Medium)
CWE
- CWE-653 - Improper Isolation or Compartmentalization
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.15-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-04-02 12:30
Credits
Red Hat would like to thank chungkn (OneMount Group) for reporting this issue.
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CVE-2026-4282 (GCVE-0-2026-4282)
Vulnerability from nvd – Published: 2026-04-02 12:44 – Updated: 2026-04-07 11:27
VLAI?
Title
Keycloak: keycloak: privilege escalation via forged authorization codes due to singleuseobjectprovider isolation flaw
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.
Severity ?
7.4 (High)
CWE
- CWE-653 - Improper Isolation or Compartmentalization
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.15-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-04-02 12:30
Credits
Red Hat would like to thank chungkn (OneMount Group) for reporting this issue.
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CVE-2026-3872 (GCVE-0-2026-3872)
Vulnerability from nvd – Published: 2026-04-02 12:37 – Updated: 2026-04-07 14:53
VLAI?
Title
Keycloak: keycloak: information disclosure due to redirect_uri validation bypass
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.
Severity ?
7.3 (High)
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.15-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-04-02 12:30
Credits
Red Hat would like to thank Meeranh for reporting this issue.
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CVE-2026-3190 (GCVE-0-2026-3190)
Vulnerability from nvd – Published: 2026-03-26 19:12 – Updated: 2026-04-02 16:39
VLAI?
Title
Keycloak: keycloak: information disclosure via improper role enforcement in uma 2.0 protection api
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.
Severity ?
4.3 (Medium)
CWE
- CWE-280 - Improper Handling of Insufficient Permissions or Privileges
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Date Public ?
2026-02-25 07:07
Credits
Red Hat would like to thank Evan Hendra (Independent Security Researcher) for reporting this issue.
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CVE-2026-3121 (GCVE-0-2026-3121)
Vulnerability from nvd – Published: 2026-03-26 19:13 – Updated: 2026-04-02 16:39
VLAI?
Title
Keycloak: org.keycloak/keycloak-services: keycloak: privilege escalation via manage-clients permission
Summary
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Severity ?
6.5 (Medium)
CWE
- CWE-266 - Incorrect Privilege Assignment
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
Date Public ?
2026-02-24 11:11
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CVE-2026-2575 (GCVE-0-2026-2575)
Vulnerability from nvd – Published: 2026-03-18 03:19 – Updated: 2026-03-18 13:34
VLAI?
Title
Keycloak: keycloak: denial of service due to excessive samlrequest decompression
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.
Severity ?
5.3 (Medium)
CWE
- CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.10-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Date Public ?
2026-02-16 08:08
Credits
Red Hat would like to thank Sho Odagiri (GMO Cybersecurity by Ierae, Inc.) for reporting this issue.
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CVE-2026-2603 (GCVE-0-2026-2603)
Vulnerability from nvd – Published: 2026-03-18 01:14 – Updated: 2026-03-18 14:10
VLAI?
Title
Keycloak: keycloak: unauthorized authentication via disabled saml identity provider
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.
Severity ?
8.1 (High)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.14-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-03-05 11:23
Credits
Red Hat would like to thank Joy Gilbert and Reynaldo Immanuel for reporting this issue.
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CVE-2026-2092 (GCVE-0-2026-2092)
Vulnerability from nvd – Published: 2026-03-18 01:14 – Updated: 2026-03-18 14:11
VLAI?
Title
Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions
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.
Severity ?
7.7 (High)
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
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(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
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Date Public ?
2026-03-05 12:34
Credits
Red Hat would like to thank Oleh Konko for reporting this issue.
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CVE-2026-2366 (GCVE-0-2026-2366)
Vulnerability from nvd – Published: 2026-03-12 10:54 – Updated: 2026-04-02 16:47
VLAI?
Title
Keycloak: keycloak: information disclosure via authorization bypass in admin api
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.
Severity ?
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Date Public ?
2026-02-11 11:11
Credits
Red Hat would like to thank Joy Gilbert and Reynaldo Immanuel for reporting this issue.
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CVE-2026-3429 (GCVE-0-2026-3429)
Vulnerability from nvd – Published: 2026-03-11 16:17 – Updated: 2026-04-02 16:39
VLAI?
Title
Org.keycloak.services.resources.account: improper access control leading to mfa deletion and account takeover in keycloak account rest api
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.
Severity ?
4.2 (Medium)
CWE
- CWE-284 - Improper Access Control
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-03-02 00:00
Credits
Red Hat would like to thank hamayanhamayan for reporting this issue.
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CVE-2026-3911 (GCVE-0-2026-3911)
Vulnerability from nvd – Published: 2026-03-11 05:36 – Updated: 2026-04-02 16:47
VLAI?
Title
Org.keycloak.services.resources.admin.userresource: keycloak: information disclosure of disabled user attributes via administrative endpoint
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.
Severity ?
CWE
- CWE-359 - Exposure of Private Personal Information to an Unauthorized Actor
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Date Public ?
2026-03-11 03:30
Credits
Red Hat would like to thank drak3hft7 for reporting this issue.
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CVE-2026-3047 (GCVE-0-2026-3047)
Vulnerability from nvd – Published: 2026-03-05 18:28 – Updated: 2026-03-06 18:13
VLAI?
Title
Org.keycloak.broker.saml: keycloak saml broker: authentication bypass due to disabled saml client completing idp-initiated login
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.
Severity ?
8.8 (High)
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.14-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-03-05 11:24
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CVE-2026-3009 (GCVE-0-2026-3009)
Vulnerability from nvd – Published: 2026-03-05 18:27 – Updated: 2026-03-24 11:28
VLAI?
Title
Org.keycloak/keycloak-services: improper enforcement of disabled identity provider in identitybrokerservice (authentication bypass)
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.
Severity ?
8.1 (High)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.10-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
Date Public ?
2026-03-05 11:23
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CVE-2026-4636 (GCVE-0-2026-4636)
Vulnerability from cvelistv5 – Published: 2026-04-02 12:45 – Updated: 2026-04-02 16:35
VLAI?
Title
Keycloak: keycloak: uma policy bypass allows authenticated users to gain unauthorized access to victim-owned resources.
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.
Severity ?
8.1 (High)
CWE
- CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
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cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-04-02 12:30
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CVE-2026-4634 (GCVE-0-2026-4634)
Vulnerability from cvelistv5 – Published: 2026-04-02 12:44 – Updated: 2026-04-03 17:23
VLAI?
Title
Keycloak: keycloak: denial of service via excessive processing of openid connect scope parameters
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.
Severity ?
7.5 (High)
CWE
- CWE-1050 - Excessive Platform Resource Consumption within a Loop
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.15-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-04-02 12:30
Credits
Red Hat would like to thank Slvrqn for reporting this issue.
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CVE-2026-4325 (GCVE-0-2026-4325)
Vulnerability from cvelistv5 – Published: 2026-04-02 12:44 – Updated: 2026-04-07 11:27
VLAI?
Title
Keycloak: keycloak: replay of action tokens via improper handling of single-use entries
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.
Severity ?
5.3 (Medium)
CWE
- CWE-653 - Improper Isolation or Compartmentalization
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.15-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-04-02 12:30
Credits
Red Hat would like to thank chungkn (OneMount Group) for reporting this issue.
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CVE-2026-4282 (GCVE-0-2026-4282)
Vulnerability from cvelistv5 – Published: 2026-04-02 12:44 – Updated: 2026-04-07 11:27
VLAI?
Title
Keycloak: keycloak: privilege escalation via forged authorization codes due to singleuseobjectprovider isolation flaw
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.
Severity ?
7.4 (High)
CWE
- CWE-653 - Improper Isolation or Compartmentalization
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.15-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-04-02 12:30
Credits
Red Hat would like to thank chungkn (OneMount Group) for reporting this issue.
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CVE-2026-3872 (GCVE-0-2026-3872)
Vulnerability from cvelistv5 – Published: 2026-04-02 12:37 – Updated: 2026-04-07 14:53
VLAI?
Title
Keycloak: keycloak: information disclosure due to redirect_uri validation bypass
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.
Severity ?
7.3 (High)
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.15-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-04-02 12:30
Credits
Red Hat would like to thank Meeranh for reporting this issue.
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CVE-2026-3121 (GCVE-0-2026-3121)
Vulnerability from cvelistv5 – Published: 2026-03-26 19:13 – Updated: 2026-04-02 16:39
VLAI?
Title
Keycloak: org.keycloak/keycloak-services: keycloak: privilege escalation via manage-clients permission
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.
Severity ?
6.5 (Medium)
CWE
- CWE-266 - Incorrect Privilege Assignment
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
Date Public ?
2026-02-24 11:11
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CVE-2026-3190 (GCVE-0-2026-3190)
Vulnerability from cvelistv5 – Published: 2026-03-26 19:12 – Updated: 2026-04-02 16:39
VLAI?
Title
Keycloak: keycloak: information disclosure via improper role enforcement in uma 2.0 protection api
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.
Severity ?
4.3 (Medium)
CWE
- CWE-280 - Improper Handling of Insufficient Permissions or Privileges
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Date Public ?
2026-02-25 07:07
Credits
Red Hat would like to thank Evan Hendra (Independent Security Researcher) for reporting this issue.
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CVE-2026-2575 (GCVE-0-2026-2575)
Vulnerability from cvelistv5 – Published: 2026-03-18 03:19 – Updated: 2026-03-18 13:34
VLAI?
Title
Keycloak: keycloak: denial of service due to excessive samlrequest decompression
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.
Severity ?
5.3 (Medium)
CWE
- CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.10-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Date Public ?
2026-02-16 08:08
Credits
Red Hat would like to thank Sho Odagiri (GMO Cybersecurity by Ierae, Inc.) for reporting this issue.
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CVE-2026-2603 (GCVE-0-2026-2603)
Vulnerability from cvelistv5 – Published: 2026-03-18 01:14 – Updated: 2026-03-18 14:10
VLAI?
Title
Keycloak: keycloak: unauthorized authentication via disabled saml identity provider
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.
Severity ?
8.1 (High)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.14-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-03-05 11:23
Credits
Red Hat would like to thank Joy Gilbert and Reynaldo Immanuel for reporting this issue.
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CVE-2026-2092 (GCVE-0-2026-2092)
Vulnerability from cvelistv5 – Published: 2026-03-18 01:14 – Updated: 2026-03-18 14:11
VLAI?
Title
Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions
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.
Severity ?
7.7 (High)
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.14-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-03-05 12:34
Credits
Red Hat would like to thank Oleh Konko for reporting this issue.
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CVE-2026-2366 (GCVE-0-2026-2366)
Vulnerability from cvelistv5 – Published: 2026-03-12 10:54 – Updated: 2026-04-02 16:47
VLAI?
Title
Keycloak: keycloak: information disclosure via authorization bypass in admin api
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.
Severity ?
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Date Public ?
2026-02-11 11:11
Credits
Red Hat would like to thank Joy Gilbert and Reynaldo Immanuel for reporting this issue.
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CVE-2026-3429 (GCVE-0-2026-3429)
Vulnerability from cvelistv5 – Published: 2026-03-11 16:17 – Updated: 2026-04-02 16:39
VLAI?
Title
Org.keycloak.services.resources.account: improper access control leading to mfa deletion and account takeover in keycloak account rest api
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.
Severity ?
4.2 (Medium)
CWE
- CWE-284 - Improper Access Control
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-03-02 00:00
Credits
Red Hat would like to thank hamayanhamayan for reporting this issue.
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CVE-2026-3911 (GCVE-0-2026-3911)
Vulnerability from cvelistv5 – Published: 2026-03-11 05:36 – Updated: 2026-04-02 16:47
VLAI?
Title
Org.keycloak.services.resources.admin.userresource: keycloak: information disclosure of disabled user attributes via administrative endpoint
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.
Severity ?
CWE
- CWE-359 - Exposure of Private Personal Information to an Unauthorized Actor
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Unaffected:
26.4.11-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Date Public ?
2026-03-11 03:30
Credits
Red Hat would like to thank drak3hft7 for reporting this issue.
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CVE-2026-3047 (GCVE-0-2026-3047)
Vulnerability from cvelistv5 – Published: 2026-03-05 18:28 – Updated: 2026-03-06 18:13
VLAI?
Title
Org.keycloak.broker.saml: keycloak saml broker: authentication bypass due to disabled saml client completing idp-initiated login
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.
Severity ?
8.8 (High)
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.14-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Date Public ?
2026-03-05 11:24
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CVE-2026-3009 (GCVE-0-2026-3009)
Vulnerability from cvelistv5 – Published: 2026-03-05 18:27 – Updated: 2026-03-24 11:28
VLAI?
Title
Org.keycloak/keycloak-services: improper enforcement of disabled identity provider in identitybrokerservice (authentication bypass)
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.
Severity ?
8.1 (High)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.10-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
Date Public ?
2026-03-05 11:23
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