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10 vulnerabilities found for Red Hat build of Keycloak 26.4.9 by Red Hat
CVE-2026-1529 (GCVE-0-2026-1529)
Vulnerability from nvd – Published: 2026-02-09 18:36 – Updated: 2026-02-16 21:45
VLAI?
Title
Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registration via improper invitation token validation
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.
Severity ?
8.1 (High)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.13-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Joy Gilbert (gwthr) and Reynaldo Immanuel for reporting this issue.
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CVE-2026-1486 (GCVE-0-2026-1486)
Vulnerability from nvd – Published: 2026-02-09 18:36 – Updated: 2026-02-10 01:00
VLAI?
Title
Org.keycloak.protocol.oidc.grants: disabled identity providers are still accepted for jwt authorization grant
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.
Severity ?
8.8 (High)
CWE
- CWE-358 - Improperly Implemented Security Check for Standard
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
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(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
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Credits
Red Hat would like to thank Joy Gilbert Dan and Reynaldo Immanuel for reporting this issue.
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CVE-2025-14778 (GCVE-0-2025-14778)
Vulnerability from nvd – Published: 2026-02-09 18:58 – Updated: 2026-02-10 01:04
VLAI?
Title
Keycloak: incorrect ownership checks in /uma-policy/
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.
Severity ?
5.4 (Medium)
CWE
- CWE-266 - Incorrect Privilege Assignment
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.13-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Joshua Rogers for reporting this issue.
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CVE-2025-13881 (GCVE-0-2025-13881)
Vulnerability from nvd – Published: 2026-02-02 05:43 – Updated: 2026-02-10 01:11
VLAI?
Title
Org.keycloak.services.resources.admin: keycloak: limited administrator can retrieve sensitive user attributes via admin api
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.
Severity ?
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:
26.4.9-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Credits
Red Hat would like to thank Simone Paganessi for reporting this issue.
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CVE-2025-14559 (GCVE-0-2025-14559)
Vulnerability from nvd – Published: 2026-01-21 06:13 – Updated: 2026-02-10 01:04
VLAI?
Title
Org.keycloak/keycloak-services: keycloak keycloak-services: business logic flaw allows unauthorized token issuance for disabled users
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.
Severity ?
6.5 (Medium)
CWE
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.9-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Credits
Red Hat would like to thank Aytac Kalinci for reporting this issue.
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CVE-2025-14778 (GCVE-0-2025-14778)
Vulnerability from cvelistv5 – Published: 2026-02-09 18:58 – Updated: 2026-02-10 01:04
VLAI?
Title
Keycloak: incorrect ownership checks in /uma-policy/
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.
Severity ?
5.4 (Medium)
CWE
- CWE-266 - Incorrect Privilege Assignment
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.13-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
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Credits
Red Hat would like to thank Joshua Rogers for reporting this issue.
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CVE-2026-1529 (GCVE-0-2026-1529)
Vulnerability from cvelistv5 – Published: 2026-02-09 18:36 – Updated: 2026-02-16 21:45
VLAI?
Title
Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registration via improper invitation token validation
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.
Severity ?
8.1 (High)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.13-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Joy Gilbert (gwthr) and Reynaldo Immanuel for reporting this issue.
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CVE-2026-1486 (GCVE-0-2026-1486)
Vulnerability from cvelistv5 – Published: 2026-02-09 18:36 – Updated: 2026-02-10 01:00
VLAI?
Title
Org.keycloak.protocol.oidc.grants: disabled identity providers are still accepted for jwt authorization grant
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.
Severity ?
8.8 (High)
CWE
- CWE-358 - Improperly Implemented Security Check for Standard
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.9-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Credits
Red Hat would like to thank Joy Gilbert Dan and Reynaldo Immanuel for reporting this issue.
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CVE-2025-13881 (GCVE-0-2025-13881)
Vulnerability from cvelistv5 – Published: 2026-02-02 05:43 – Updated: 2026-02-10 01:11
VLAI?
Title
Org.keycloak.services.resources.admin: keycloak: limited administrator can retrieve sensitive user attributes via admin api
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.
Severity ?
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:
26.4.9-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Credits
Red Hat would like to thank Simone Paganessi for reporting this issue.
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CVE-2025-14559 (GCVE-0-2025-14559)
Vulnerability from cvelistv5 – Published: 2026-01-21 06:13 – Updated: 2026-02-10 01:04
VLAI?
Title
Org.keycloak/keycloak-services: keycloak keycloak-services: business logic flaw allows unauthorized token issuance for disabled users
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.
Severity ?
6.5 (Medium)
CWE
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.9-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|||||||||||||||||
|
|||||||||||||||||||
Credits
Red Hat would like to thank Aytac Kalinci for reporting this issue.
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