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.
Metrics
Affected Vendors & Products
References
History
Tue, 10 Feb 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Redhat build Of Keycloak
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| Vendors & Products |
Redhat build Of Keycloak
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Tue, 10 Feb 2026 01:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| References |
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Tue, 10 Feb 2026 00:15:00 +0000
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| References |
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| Metrics |
threat_severity
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threat_severity
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Mon, 09 Feb 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:build_keycloak:26.2::el9 | |
| References |
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| Metrics |
ssvc
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Mon, 09 Feb 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registration via improper invitation token validation | |
| First Time appeared |
Redhat
Redhat build Keycloak |
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| Weaknesses | CWE-347 | |
| CPEs | cpe:/a:redhat:build_keycloak: | |
| Vendors & Products |
Redhat
Redhat build Keycloak |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-02-09T18:36:15.077Z
Updated: 2026-02-10T12:40:29.813Z
Reserved: 2026-01-28T12:22:02.063Z
Link: CVE-2026-1529
Updated: 2026-02-09T20:51:11.825Z
Status : Awaiting Analysis
Published: 2026-02-09T20:15:55.883
Modified: 2026-02-10T02:15:52.253
Link: CVE-2026-1529
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