CVE-2026-1529: falha de alta gravidade em Red Hat build of Keycloak 26.2
Org.keycloak.services.resources.organizations: keycloak: unauthorized organization registration via improper invitation token validation
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.1epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Produtos afetados
Red Hat · Red Hat build of Keycloak 26.2Red Hat · Red Hat build of Keycloak 26.2.13Red Hat · Red Hat build of Keycloak 26.4Red Hat · Red Hat build of Keycloak 26.4.9CVEs relacionadas — Red Hat build of Keycloak 26.2
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Referências
https://access.redhat.com/errata/RHSA-2026:2363https://access.redhat.com/errata/RHSA-2026:2364https://access.redhat.com/errata/RHSA-2026:2365https://access.redhat.com/errata/RHSA-2026:2366https://access.redhat.com/security/cve/CVE-2026-1529https://bugzilla.redhat.com/show_bug.cgi?id=2433783https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1529.json